Health Calculators
Master health and wellness calculations with our comprehensive toolkit. From BMI and calorie tracking to medical dosage and cardiovascular assessments, our calculators support informed health decisions for patients, fitness enthusiasts, and healthcare professionals.
Body Measurements Calculators
ABSI Calculator
Calculate A Body Shape Index for health risk assessment
Adjusted Body Weight Calculator
Calculate adjusted body weight for medical dosing
BAI Calculator - Body Adiposity Index
Calculate Body Adiposity Index using hip measurement
Bedridden Patient Height Calculator
Estimate height for bedridden patients
Body Fat Calculator
Calculate body fat percentage using various methods
Body Frame Size Calculator
Determine if you have small, medium, or large frame
Body Shape Calculator
Determine your body shape type (pear, apple, etc.)
BRI Calculator — Body Roundness Index
Calculate Body Roundness Index for health assessment
BSA Calculator – Body Surface Area
Calculate body surface area for medical dosing
Draw Length Calculator
Calculate archery draw length based on arm span
Face Shape Calculator
Determine your face shape type
FFMI Calculator (Fat-Free Mass Index)
Calculate Fat-Free Mass Index for muscle assessment
Ideal Weight Calculator
Calculate ideal body weight using various formulas
Karvonen Formula Calculator
Calculate target heart rate using Karvonen method
Lean Body Mass Calculator
Calculate lean body mass and muscle weight
Overweight Calculator
Determine if you are overweight or obese
Ponderal Index Calculator
Calculate Ponderal Index as BMI alternative
RFM Calculator (Relative Fat Mass)
Calculate Relative Fat Mass for body composition
Skinfold Body Fat Calculator
Calculate body fat using skinfold measurements
Waist to Height Ratio Calculator
Calculate waist-to-height ratio for health screening
Waist to Hip Ratio Calculator
Calculate WHR for health risk assessment
Weight Loss Percentage Calculator
Calculate percentage of weight lost
BMI Calculators
BMI Calculator – Body Mass Index
Calculate your Body Mass Index and weight status
BMI Calculator for Kids
Calculate BMI percentiles for children and teens
BMI Calculator for Men
BMI calculator specifically designed for men
BMI Calculator for Teens
BMI calculator for teenage health assessment
BMI Calculator for Women
BMI calculator specifically designed for women
BMI Weight Loss Calculator
Calculate weight loss needed to reach target BMI
Geriatric BMI Calculator
BMI calculator for elderly population
Army Calculators
ACFT Calculator
Calculate Army Combat Fitness Test scores
Air Force PT Calculator
Calculate Air Force Physical Training test scores
APFT Calculator
Calculate Army Physical Fitness Test scores
Army Body Fat Calculator
Calculate body fat percentage for Army standards
Navy Body Fat Calculator
Calculate body fat percentage for Navy standards
Navy PRT Calculator
Calculate Navy Physical Readiness Test scores
Dietary Calculators
Added Sugar Intake Calculator
Calculate daily added sugar consumption
BEE Calculator
Calculate Basal Energy Expenditure
BMR Calculator (Basal Metabolic Rate, Mifflin St Jeor Equation)
Calculate BMR using Mifflin St Jeor equation
Calorie Calculator
Calculate daily calorie needs for weight goals
Calorie Deficit Calculator
Calculate calorie deficit for weight loss
Calorie Intake Calculator (Simple)
Simple daily calorie intake calculator
Carb Calculator (Carbohydrates)
Calculate daily carbohydrate requirements
Diet Risk Score Calculator
Assess dietary health risks
DRI Calculator
Calculate Dietary Reference Intakes
EER Calculator — Estimated Energy Requirement
Calculate estimated energy requirements
Fat Intake Calculator
Calculate optimal daily fat intake
Fiber Calculator
Calculate daily fiber requirements
Gastric Sleeve Weight Loss Calculator
Calculate expected weight loss after gastric sleeve
Harris-Benedict Calculator (Basal Metabolic Rate)
Calculate BMR using Harris-Benedict equation
IIFYM Calculator (If It Fits Your Macros)
Calculate flexible dieting macronutrients
Katch-McArdle Calculator
Calculate BMR using lean body mass
Keto Calculator
Calculate ketogenic diet macronutrients
Macro Calculator
Calculate optimal macronutrient ratios
Maintenance Calorie Calculator
Calculate calories to maintain current weight
Meal Calorie Calculator
Calculate calories in meals and recipes
Micronutrient Calculator
Calculate vitamin and mineral requirements
Net Carbs Calculator
Calculate net carbohydrates for keto diet
Protein Calculator
Calculate daily protein requirements
Quarantine Activity Calculator
Calculate calories during quarantine periods
RMR Calculator - Resting Metabolic Rate
Calculate resting metabolic rate
Sodium in Salt Calculator
Calculate sodium content in salt
TDEE Calculator - Total Daily Energy Expenditure
Calculate total daily energy expenditure
Vitamin A Calculator
Calculate Vitamin A requirements and intake
Vitamin Calculator
Calculate daily vitamin requirements
Vitamin D Calculator
Calculate Vitamin D requirements and deficiency
Weight Gain Calculator
Calculate calories for healthy weight gain
Weight Watchers Points Calculator
Calculate Weight Watchers SmartPoints
Diabetes Calculators
A1c Calculator – Hemoglobin A1c to Average Blood Sugar
Convert HbA1c percentage to average blood glucose using ADAG formula with bidirectional conversion and diabetes risk assessment
Blood Sugar Converter
Convert blood glucose units (mg/dL to mmol/L)
Diabetes Risk Calculator
Assess your risk of developing diabetes
Diabetic Ketoacidosis Calculator
Assess DKA diagnosis using ADA criteria and mortality risk
Estimated Average Glucose Calculator
Convert HbA1c to estimated average glucose (eAG) levels
Glycemic Index Calculator
Find glycemic index values of 250+ foods and understand blood sugar impact
Glycemic Load Calculator
Calculate glycemic load using GI and carbohydrate content for accurate blood sugar impact assessment
HOMA-IR Calculator — Insulin Resistance
Calculate insulin resistance using HOMA-IR and QUICKI index from fasting glucose and insulin levels with medical interpretation
Insulin Dosage Calculator
Calculate mealtime insulin dosage for diabetes management with carbohydrate coverage and blood glucose correction
QUICKI Calculator
Calculate Quantitative Insulin Sensitivity Check Index to assess insulin resistance and diabetes risk from fasting glucose and insulin levels
Warsaw Method Calculator
Calculate insulin dosage for fat and protein using Fat-Protein Units (FPU) with extended bolus timing for advanced Type 1 diabetes management
Metabolic Disorders Calculators
Cholesterol Ratio Calculator
Calculate cholesterol ratios (LDL/HDL, Total/HDL, TG/HDL) to assess cardiovascular risk with comprehensive medical interpretation and heart health guidance
Cholesterol Units Converter
Convert cholesterol units between mg/dL and mmol/L for total cholesterol, HDL, LDL, and triglycerides with accurate medical conversion factors
Gout Diagnosis Calculator
Assess gout probability using validated clinical criteria and 7-factor scoring system for accurate diagnosis and risk stratification
LDL Calculator
Calculate Low-Density Lipoprotein cholesterol using the Friedewald equation from total cholesterol, HDL, and triglycerides with cardiovascular risk assessment
Metabolic Syndrome Calculator
Assess metabolic syndrome risk factors
SAAG Calculator – Serum-Ascites Albumin Gradient
Calculate SAAG for ascites evaluation
VLDL Calculator
Calculate VLDL cholesterol levels
Cardiovascular System Calculators
6 Minute Walk Test Calculator
Calculate fitness based on 6-minute walk distance
ABI Calculator (Ankle-Brachial Index)
Calculate ankle-brachial index for PAD screening
Aortic Valve Area Calculator
Calculate aortic valve area using continuity equation
Arterial Age Calculator
Calculate vascular age based on risk factors
Blood Pressure Calculator
Analyze blood pressure readings and categories
Cardiac Index Calculator
Calculate cardiac index normalized to body surface area
Cardiac Output Calculator
Calculate cardiac output and cardiac index
Cerebral Perfusion Pressure Calculator
Calculate cerebral perfusion pressure (CPP)
CHA2DS2-Vasc Calculator
Calculate stroke risk in atrial fibrillation
CVD Risk Calculator – Cardiovascular Disease 10-year Risk
Calculate 10-year cardiovascular disease risk
DAPT calculator
Calculate dual antiplatelet therapy duration
Doppler Echo Cardiac Output Calculator
Calculate cardiac output using Doppler echocardiography
Duke Treadmill Score Calculator
Calculate Duke treadmill score for CAD risk
ECG Boxes to Seconds Calculator
Convert ECG paper boxes to time duration
ECG Heart Rate Calculator
Calculate heart rate from ECG rhythm strips
EROA - Mitral Regurgitation Calculator
Calculate effective regurgitant orifice area
Framingham Risk Calculator
Calculate cardiovascular risk using Framingham model
Gorlin Formula Calculator
Calculate valve area using Gorlin formula
GRACE Calculator
Calculate GRACE risk score for ACS
Gupta Risk Calculator
Calculate perioperative cardiac risk
HAS-BLED Calculator
Calculate bleeding risk in anticoagulated patients
Heart Failure Life Expectancy Calculator
Calculate heart failure prognosis and life expectancy
Heart Rate Calculator
Calculate target heart rate zones
HEART Score Calculator
Calculate HEART score for chest pain risk
ICH Volume Calculator
Calculate intracranial hemorrhage volume
LV Calculator
Calculate left ventricular function parameters
MAP Calculator (Mean Arterial Pressure)
Calculate mean arterial pressure
Mitral Valve Area Calculator
Calculate mitral valve area using pressure half-time
Padua Score Calculator
Calculate VTE risk in hospitalized patients
PERC Calculator - Pulmonary Embolism Rule-Out Criteria
Rule out pulmonary embolism using PERC criteria
PISA Calculator
Calculate regurgitant volume using PISA method
PVR Calculator - Pulmonary Vascular Resistance
Calculate pulmonary vascular resistance
Qp/Qs Calculator
Calculate pulmonary to systemic flow ratio for cardiac shunt assessment
QTc Calculator
Calculate corrected QT interval
Rate Pressure Product Calculator
Calculate myocardial oxygen demand
RCRI Calculator
Calculate Revised Cardiac Risk Index
Revised Geneva Score Calculator for Pulmonary Embolism
Calculate revised Geneva score for PE risk
Stroke Volume Calculator
Calculate stroke volume and ejection fraction
TIMI Score Calculator for UA/NSTEMI
Calculate TIMI risk score for UA/NSTEMI
TIMI Score for STEMI Calculator
Calculate TIMI risk score for STEMI patients
Wells Score Calculator for Pulmonary Embolism
Calculate Wells score for pulmonary embolism risk
Sleep Calculators
AHI Calculator | Apnea-Hypopnea Index
Calculate Apnea-Hypopnea Index for sleep apnea assessment
Epworth Sleepiness Scale Calculator
Assess daytime sleepiness levels
REM Sleep Calculator
Calculate REM sleep stages and timing
Sleep Calculator
Calculate optimal bedtime and wake time
Sleep Cycle Calculator
Calculate sleep cycles for better rest
Sleep Debt Calculator
Calculate accumulated sleep debt
Sleep Time Calculator
Calculate optimal bedtime and wake time based on sleep cycles
STOP-BANG Calculator
Screen for obstructive sleep apnea risk
Wake Up Calculator
Calculate optimal wake-up and bedtimes for better sleep quality
Gynecology & Pregnancy Calculators
After Positive Pregnancy Test Guide
Essential next steps and timeline after getting a positive pregnancy test
BBT Calculator | Basal Body Temperature
Track basal body temperature for fertility monitoring
Birth Control Calculator
Calculate contraceptive effectiveness and timing
Bishop Score Calculator
Calculate cervical readiness for labor induction
Breast Cancer Recurrence Risk Calculator
Calculate breast cancer recurrence risk
Breast Cancer Risk Calculator
Assess breast cancer risk factors
Breastfeeding Calorie Calculator
Calculate additional calories needed while breastfeeding
Chances of Having Twins Calculator
Calculate probability of twin pregnancy
Clomid Ovulation Calculator
Calculate ovulation timing with Clomid treatment
Conception Calculator
Estimate conception date from due date or last menstrual period
Crown-rump Length Calculator
Calculate gestational age from crown-rump length
Due Date Calculator
Calculate pregnancy due date and milestones
EDD Calculator - Estimated Date of Delivery
Calculate estimated delivery date using multiple methods
Egg Freezing Calculator
Calculate success rates for egg freezing by age
Fertility by Age Calculator
Calculate fertility rates and chances by age
Flange Size Calculator
Calculate correct breast pump flange size
Fundal Height Calculator
Calculate fundal height during pregnancy
Gestational Age Calculator
Calculate gestational age from conception or LMP
hCG Levels Calculator
Track and analyze hCG levels during pregnancy
Implantation Calculator
Calculate implantation timing and bleeding dates
IVF Due Date Calculator
Calculate due date for IVF pregnancies
Luteal Phase Calculator
Calculate luteal phase length and defects
MCA Calculator
Calculate middle cerebral artery measurements
Mean Sac Diameter Calculator
Calculate gestational age from mean sac diameter
Nuchal Translucency Calculator
Calculate Down syndrome risk from NT measurement
Ovulation Calculator
Calculate ovulation dates and fertile window
Pearl Index Calculator
Calculate contraceptive method effectiveness
Period Calculator
Track menstrual cycle and predict periods
Pregnancy Calculator
Track pregnancy weeks and development
Pregnancy Test at 3 Weeks Calculator
Determine if a positive pregnancy test at 3 weeks is possible
Pregnancy Test Calculator
Calculate when to take pregnancy test
Pregnancy Weight Gain Calculator
Calculate healthy weight gain during pregnancy
Pregnancy Weight Gain: Week by Week Breakdown
Track weekly pregnancy weight gain with personalized recommendations
Progesterone to Estrogen Ratio Calculator
Calculate hormone ratio for fertility assessment
Reverse Due Date Calculator
Calculate conception date from due date
Sperm Analysis Calculator
Analyze sperm count and fertility parameters
Stillbirth Risk Calculator
Calculate stillbirth risk factors and prevention
Testosterone to Estradiol Ratio Calculator
Calculate hormone ratio for reproductive health
Twin Pregnancy Weight Gain Calculator
Calculate healthy weight gain for twin pregnancies based on BMI
Urine Home Pregnancy Test
Calculate optimal timing and accuracy of home pregnancy tests
VBAC Calculator
Calculate Vaginal Birth After Cesarean success probability using Grobman model
VTE Risk Score Calculator in Pregnancy
Calculate venous thromboembolism risk in pregnancy
Addiction Medicine Calculators
Addiction Calculator
Assess addiction risk and severity
Alcohol Unit Calculator
Calculate alcohol units in drinks
AUDIT Score Calculator
Complete 10-question WHO alcohol use disorders assessment with instant scoring
Audit-C Calculator – Am I an Alcoholic?
Screen for alcohol use disorders with AUDIT-C
BAC Calculator (Blood Alcohol Content)
Calculate blood alcohol content using Widmark formula with time to sobriety
Caffeine Calculator
Track daily caffeine intake from coffee, tea, energy drinks with health guidance
CAGE Questionnaire Calculator
Complete 4-question CAGE alcohol screening assessment with clinical interpretation
Cigarette Calculator
Calculate lifetime cigarette exposure, pack-years, health risks, and smoking costs
CIWA Calculator
Calculate Clinical Institute Withdrawal Assessment
DUDIT Calculator
Drug Use Disorders Identification Test
Fagerstrom Test for Nicotine Dependence Calculator
Assess nicotine dependence severity
Finnegan Score Calculator
Assess neonatal withdrawal syndrome
HSI Calculator — Heaviness of Smoking Index
Calculate heaviness of smoking index
Pack Year Calculator
Calculate pack-years of smoking history
Smoking Recovery Calculator
Track smoking cessation benefits over time
Sobriety Calculator
Calculate sobriety time and milestones
Standard Drink Calculator
Calculate standard drink equivalents
Urology & Nephrology Calculators
Adrenal Washout Calculator
Calculate adrenal adenoma washout values
Albumin Creatinine Ratio Calculator
Calculate ACR for kidney disease screening
Bladder Volume Calculator
Calculate bladder volume from ultrasound measurements
BUN Creatinine Ratio Calculator
Calculate BUN to creatinine ratio
Creatinine Clearance Calculator
Calculate creatinine clearance using Cockcroft-Gault
EORTC Bladder Cancer Recurrence and Progression Calculator
Calculate bladder cancer recurrence and progression risk
FENa Calculator (Fractional Excretion of Sodium)
Calculate fractional excretion of sodium for AKI
FEUrea Calculator — Acute Kidney Injury Cause Differentiation
Calculate fractional excretion of urea for AKI differentiation
GFR Calculator - Estimated Glomerular Filtration Rate
Calculate estimated GFR using CKD-EPI equation
Kidney Failure Risk Calculator
Calculate 2 and 5-year kidney failure risk
Kidney STONE Calculator for Percutaneous Neprolithotomy
Calculate STONE score for percutaneous nephrolithotomy
Kt/V Calculator Daugirdas
Calculate dialysis adequacy using Kt/V Daugirdas formula
Metastatic Prostate Cancer Prognosis Calculator
Calculate prognosis for metastatic prostate cancer
Protein Creatinine Ratio Calculator
Calculate protein to creatinine ratio
PSA Density Calculator
Calculate PSA density for prostate cancer screening
PSA Doubling Time Calculator
Calculate PSA doubling time for cancer monitoring
TTKG Calculator - Transtubular Potassium Gradient
Calculate transtubular potassium gradient
Urine Output Calculator
Calculate urine output rate and volume
URR Calculator - Urea Reduction Ratio
Calculate urea reduction ratio for dialysis adequacy
Electrolytes & Fluids Calculators
Acid Base Calculator
Analyze acid-base status using pH, PCO2, and HCO3 values
Anion Gap Calculator
Calculate anion gap from serum electrolytes with albumin correction for acid-base disorder evaluation and metabolic acidosis assessment
Arterial Blood pH Calculator
Estimate the acidity of arterial blood using the Henderson-Hasselbalch equation for acid-base analysis and ABG interpretation
Bicarbonate Deficit Calculator
Calculate bicarbonate deficit for metabolic acidosis management and sodium bicarbonate replacement therapy planning
Corrected Calcium Calculator
Calculate albumin-adjusted calcium levels for accurate assessment in patients with abnormal serum albumin concentrations
Corrected Magnesium Calculator
Calculate albumin-adjusted magnesium levels for accurate assessment in patients with hypoalbuminemia using Kroll-Elin formula
Drip Rate Calculator
Calculate IV drip rate in drops per minute
Drops Per Minute Calculator
Calculate medication drops per minute for IV infusion
Free Water Deficit Calculator
Calculate free water deficit in hypernatremia
IV Flow Rate Calculator
Calculate intravenous fluid flow rate
Parkland Formula Calculator
Calculate fluid resuscitation for burn patients
Plasma Osmolality Calculator
Calculate plasma osmolality and osmolar gap
Serum Osmolality Calculator
Calculate serum osmolality from electrolyte values
Sodium Change Calculator in Hypertriglyceridemia
Calculate sodium correction in hypertriglyceridemia
Sodium Correction Calculator
Calculate corrected sodium levels for hyperglycemia
Sodium Correction Rate Calculator
Calculate safe sodium correction rate for hypo/hypernatremia
Sodium Deficit Calculator
Calculate sodium deficit in hyponatremia
Total Body Water Calculator
Calculate total body water content and distribution
Urine Anion Gap Calculator
Calculate urine anion gap for renal tubular acidosis
Venous Blood pH Calculator
Calculate venous blood pH and acid-base status
Water Intake Calculator
Calculate daily water requirements
Winters Formula Calculator
Calculate expected PCO2 in metabolic acidosis compensation
Hematology Calculators
4T Score Calculator | HIT
Calculate 4T score for heparin-induced thrombocytopenia assessment
Absolute Eosinophil Count Calculator
Calculate absolute eosinophil count from CBC results
Absolute Lymphocyte Count Calculator
Calculate absolute lymphocyte count for immunological assessment
Absolute Reticulocyte Count Calculator
Calculate absolute reticulocyte count for bone marrow evaluation
Age-Adjusted D-dimer Calculator
Calculate age-adjusted D-dimer cutoff values
Albumin Globulin Ratio Calculator
Calculate albumin to globulin ratio for liver function assessment
Allowable Blood Loss Calculator
Calculate maximum allowable blood loss during surgery
ANC Calculator — Absolute Neutrophil Count
Calculate absolute neutrophil count for infection risk assessment
ANC Calculator without Bands
Calculate ANC without band neutrophils count
Blood Donation Due Date Calculator
Calculate when you can donate blood again
Blood Donor Calculator
Assess blood donor eligibility and compatibility
Blood Type Calculator
Determine possible blood types from parent genetics
Blood Volume Calculator
Calculate total blood volume based on body parameters
Corrected Reticulocyte Count Calculator
Calculate corrected reticulocyte count for anemia evaluation
DIC Syndrome Calculator
Calculate DIC score for disseminated intravascular coagulation
Diffuse Large B-cell Lymphoma Prognosis Calculator
Calculate prognosis for diffuse large B-cell lymphoma patients
Fresh Frozen Plasma Dose Calculator
Calculate FFP dosage for coagulation factor replacement
Hematocrit to Hemoglobin Ratio Calculator
Calculate hematocrit to hemoglobin ratio for blood analysis
INR Calculator
Calculate International Normalized Ratio for anticoagulation monitoring
Iron Deficiency Calculator
Assess iron deficiency using laboratory parameters
Mentzer Index Calculator
Calculate Mentzer index to differentiate thalassemia from iron deficiency
MIPI Calculator (Mantle Cell Lymphoma International Prognostic Index)
Calculate MIPI score for mantle cell lymphoma prognosis
mmol/L to mg/dL Calculator
Convert laboratory values between mmol/L and mg/dL units
NLR Calculator
Calculate neutrophil to lymphocyte ratio for inflammatory assessment
Plasma Volume Calculator
Calculate plasma volume for blood component therapy
RBC Indices Calculator | What is MCHC?
Calculate red blood cell indices including MCHC, MCV, and MCH
Transferrin Saturation Calculator
Calculate transferrin saturation for iron metabolism assessment
Percentile Calculators
Baby Percentile Calculator
Calculate baby growth percentiles for height, weight, and head circumference
Birth Weight Percentile Calculator
Calculate birth weight percentiles for newborns
BMI Percentile Calculator
Calculate BMI percentiles for children and adolescents
Fetal Weight Percentile Calculator
Calculate fetal weight percentiles during pregnancy
Head Circumference Percentile Calculator
Calculate head circumference percentiles for infant development
Height Percentile Calculator
Calculate height percentiles for children and adults
IQ Percentile Calculator
Calculate IQ percentiles and cognitive assessment rankings
Weight Percentile Calculator
Calculate weight percentiles for pediatric growth assessment
Pediatric Calculators
Adjusted Age Calculator
Calculate corrected age for premature infants
Amoxicillin Pediatric Dosage Calculator
Calculate amoxicillin dosage for pediatric patients
APGAR Score Calculator
Calculate APGAR score for newborn assessment
Baby Eye Color Calculator
Predict baby eye color based on parent genetics
Baby Formula Calculator
Calculate baby formula feeding amounts and schedule
Baby's Milk Intake Calculator
Calculate appropriate milk intake for infants
Exclusive Pumping Calculator
Calculate breast milk pumping schedule and amounts
GIR Calculator (Glucose Infusion Rate)
Calculate glucose infusion rate for pediatric patients
Infant Tylenol Dosage Calculator
Calculate safe Tylenol dosage for infants and children
Maintenance Fluids Calculator
Calculate maintenance fluid requirements for children
Newborn Hyperbilirubinemia Assessment Calculator
Assess newborn jaundice and bilirubin levels
Paracetamol Dosage Calculator
Calculate paracetamol (acetaminophen) dosage for children
PECARN Calculator
Assess head injury risk in children (PECARN rules)
Pediatric Blood Pressure Calculator
Calculate blood pressure percentiles for children
Pediatric Blood Transfusion Volume Calculator
Calculate blood transfusion volumes for pediatric patients
Pediatric Blood Volume Calculator
Calculate total blood volume in pediatric patients
Pediatric Epinephrine Dose Calculator
Calculate epinephrine dosage for pediatric emergencies
Pediatric Epworth Sleepiness Scale Calculator
Assess sleepiness in children
Pediatric GFR Calculator - Glomerular Filtration Rate
Calculate glomerular filtration rate for children
Pediatric Ibuprofen Dosage Calculator
Calculate safe ibuprofen dosage for children
Pulmonary Calculators
Aa Gradient Calculator
Calculate alveolar-arterial oxygen gradient
BODE Index Calculator
Calculate BODE index for COPD prognosis
CURB-65 Calculator
Assess pneumonia severity using CURB-65 score
Dead Space Calculator
Calculate physiological dead space using the Bohr equation with CO2 measurements
Endotracheal Tube Size Calculator
Calculate optimal ETT size and insertion depth using Cole's formula for safe intubation
FEV1/FVC Ratio Calculator
Calculate the Tiffeneau index to assess pulmonary function and detect airflow obstruction in COPD and asthma
Light's Criteria Calculator for Pleural Effusion
Classify pleural effusion as exudate or transudate using protein and LDH ratios for accurate diagnosis
Lung Cancer Risk Calculator
Calculate lung cancer risk based on smoking history using validated Markaki formulas with 6-year and 16-year predictions for screening decisions
Lung Capacity Calculator
Calculate total lung capacity (TLC), vital capacity (VC), inspiratory capacity (IC), and functional residual capacity (FRC) from spirometry volumes
Lung Nodule Growth Rate Calculator
Calculate lung nodule malignancy risk using the Brock University cancer prediction model based on patient factors and nodule characteristics
Mean Airway Pressure Calculator
Calculate mean airway pressure (Paw) for mechanical ventilation assessment using PEEP, PIP, inspiratory time, and waveform analysis
Oxygenation Index Calculator
Calculate oxygenation index (OI) to assess lung function and ECMO candidacy
Peak Flow Calculator
Calculate estimated peak expiratory flow (PEF) for asthma monitoring and respiratory assessment
PF Ratio Calculator
Calculate PaO₂/FiO₂ ratio for ARDS assessment and respiratory evaluation
PSI Calculator
Calculate Pneumonia Severity Index (PORT Score) for community-acquired pneumonia assessment
RSBI Calculator - Rapid Shallow Breathing Index
Calculate RSBI for ventilator weaning assessment and respiratory failure evaluation
Tidal Volume Calculator
Calculate ideal tidal volume for mechanical ventilation
Vital Capacity Calculator
Calculate predicted vital capacity based on age, height, and sex using the Baldwin formula
Psychiatry & Psychology Calculators
Autistic Self-Assessment Calculator
Self-reflection tool to explore common traits associated with Autism Spectrum Disorder
Depression Screening by PHQ-2 Calculator
Quick 2-question depression screening tool with evidence-based assessment and crisis resources
EPDS Calculator
Edinburgh Postnatal Depression Scale - Screen for postpartum depression in new mothers
GAD-7 Calculator
Screen for generalized anxiety disorder with the 7-question GAD-7 assessment tool
Happiness Calculator
Measure happiness using the validated Subjective Happiness Scale (SHS) with personalized well-being insights
Snap Score Calculator
Screen for ADHD symptoms using the validated SNAP-IV 26-item rating scale for children aged 6-18
Intensive & Emergency Care Calculators
Alvarado Score Calculator
Assess appendicitis probability using clinical signs, symptoms, and lab data with the validated Alvarado scoring system
APACHE II Calculator
Calculate ICU mortality risk using the Acute Physiology and Chronic Health Evaluation II scoring system
GCS Calculator (Glasgow Coma Scale)
Calculate Glasgow Coma Scale for neurological assessment
ICH Score Calculator
Calculate intracerebral hemorrhage severity and 30-day mortality prediction
Injury Severity Score Calculator
Calculate ISS for trauma severity assessment
LRINEC Score Calculator
Calculate LRINEC Score to assess risk of necrotizing fasciitis using laboratory parameters
MEWS Score Calculator
Calculate Modified Early Warning Score for patient deterioration
NEDOCS Calculator
Calculate NEDOCS score for emergency department overcrowding
NIH Stroke Scale Calculator
Calculate NIH Stroke Scale for stroke severity assessment
qSOFA Score Calculator
Calculate quick SOFA score for sepsis screening
Revised Trauma Score Calculator
Calculate Revised Trauma Score for trauma triage
SAPS II Calculator: Simplified Acute Physiology II Score Calculator
Calculate SAPS II score for ICU mortality prediction
SCORAD Calculator - SCORing Atopic Dermatitis
Calculate SCORAD index for atopic dermatitis severity
Sepsis Calculator (Sepsis-3 Criteria)
Assess sepsis using Sepsis-3 criteria and definitions
Shock Index Calculator
Calculate shock index for hemodynamic assessment
SOFA Score Calculator
Calculate Sequential Organ Failure Assessment score
Digestive System Calculators
APRI Calculator
Calculate AST to Platelet Ratio Index for liver fibrosis assessment
FIB-4 Calculator
Calculate FIB-4 index for liver fibrosis assessment
Lille Score Calculator
Calculate Lille score for alcoholic hepatitis treatment response
MELD Calculator (Model for End-Stage Liver Disease)
Calculate MELD score for liver transplant prioritization
NAFLD Fibrosis Score Calculator
Calculate NAFLD fibrosis score for non-alcoholic fatty liver disease
Epidemiology Calculators
COVID-19 Mortality Risk Calculator
Calculate COVID-19 mortality risk based on age, comorbidities, and demographics
Denver HIV Risk Score Calculator
Calculate HIV risk score using Denver screening criteria
Event Risk Calculator
Calculate risk of encountering COVID-19 positive individuals at events
Hand Sanitizer Calculator
Calculate proper hand sanitizer concentration and usage requirements
Incidence Rate Calculator
Calculate disease incidence rates and cumulative incidence in populations
Infectious Disease SIR Model
Calculate epidemic spread using Susceptible-Infected-Recovered model
Mask vs No Mask Calculator
Calculate infection risk reduction with and without mask wearing
Max Vaccine Immunity Calculator
Calculate maximum population immunity after vaccination campaigns
Mortality Rate Calculator
Calculate crude and age-adjusted mortality rates for populations
NNT Calculator
Calculate Number Needed to Treat for medical interventions
Reopening Calculator
Calculate safe reopening metrics based on COVID-19 transmission rates
Social Distancing Calculator
Calculate optimal social distancing measures for pandemic control
Swiss Cheese Model Calculator
Calculate layered defense effectiveness using Swiss cheese safety model
Radiology Calculators
Redundant Calculators
90 Minute Sleep Cycle Calculator
Calculate optimal sleep timing based on 90-minute sleep cycles
Blood Pregnancy Test: What Do HCG Results Mean?
Interpret HCG blood test results for pregnancy confirmation
Circadian Rhythm Calculator
Calculate optimal circadian rhythm timing for better sleep health
Excessive Weight Gain in Pregnancy
Calculate and assess excessive weight gain during pregnancy
How to Maintain or Lose Weight During Pregnancy?
Calculate safe weight management strategies during pregnancy
Is BMI (Body Mass Index) a Weight Gain Indicator in Pregnancy?
Determine if BMI indicates healthy pregnancy weight gain patterns
What is a False Negative Pregnancy Test?
Calculate probability and causes of false negative pregnancy tests
Dosage Calculators
Adderall Dosage Calculator
Calculate appropriate Adderall dosage for ADHD and narcolepsy treatment with age-based guidelines and safety warnings
Aleve Dosage Calculator
Calculate safe Aleve (naproxen sodium) dosage for pain relief, inflammation, and various conditions with safety warnings
Benadryl Dosage Calculator
Calculate safe Benadryl (diphenhydramine) dosage for allergy relief with age-based dosing and safety warnings
Benzodiazepine Conversion Calculator
Convert between benzodiazepine medications (Xanax, Ativan, Valium) with equivalent dosing and safety warnings for medical professionals
Carboplatin Calculator
Calculate carboplatin chemotherapy dose using Calvert formula with AUC targeting and GFR-based dosing for oncology professionals
Cefdinir Dose Calculator
Calculate accurate Cefdinir (Omnicef) dosage for adults and children with weight-based pediatric dosing
Dosage Calculator
Calculate medication dosages for patients
Drug Half-Life Calculator
Calculate drug elimination and remaining concentration over time using pharmacokinetic principles
Fish Oil Calculator
Calculate optimal fish oil dosage based on age, health conditions, and EPA/DHA requirements
Gabapentin Dosage Calculator
Calculate gabapentin dosage for neuropathic pain, epilepsy, and other conditions with kidney function adjustments
Hydroxychloroquine Dose Calculator
Calculate safe hydroxychloroquine dosage for lupus, rheumatoid arthritis, and malaria with retinal toxicity assessment
Isotretinoin Dose Calculator
Calculate isotretinoin (Accutane) cumulative dose, daily dosage, and treatment duration for severe acne therapy with safety monitoring
IVIG Dose Calculator
Calculate IVIG (Intravenous Immunoglobulin) and RhIG dosages with weight-based adjustments for immunodeficiency, autoimmune diseases, and maternal-fetal hemorrhage
Levothyroxine Dosage Calculator
Calculate levothyroxine starting dose for hypothyroidism with age-based adjustments, heart disease considerations, and TSH targets
Lidocaine Dose Calculator
Calculate maximum safe lidocaine dose for local anesthesia with weight-based dosing and toxicity warnings
Local Anesthetic Calculator
Calculate maximum safe doses for multiple local anesthetics (lidocaine, bupivacaine, mepivacaine, ropivacaine) with comprehensive safety guidelines and toxicity prevention
mcg to IU Converter
Convert between micrograms (mcg) and International Units (IU) for vitamins A, D, E, hormones, and medications with accurate conversion factors and safety guidelines
Melatonin Dosage Calculator
Calculate optimal melatonin dosage for sleep disorders, jet lag, insomnia, and circadian rhythm disorders with evidence-based recommendations by age and condition
MME Calculator
Calculate Morphine Milligram Equivalents (MME) for opioid medications with comprehensive risk assessment and safe prescribing guidelines
Opioid Conversion Calculator
Convert between opioid medications with equianalgesic dosing and cross-tolerance adjustment for safe opioid rotation
Pediatric Dose Calculator
Calculate medication doses for children
Peptide Dosage Calculator
Calculate peptide reconstitution, syringe measurements, and cycle requirements for therapeutic peptides including BPC-157, CJC-1295, Sermorelin, and AOD 9604
Prescription Refill Calculator
Calculate prescription refill dates and medication days supply for both Rx and OTC medications with comprehensive refill management
Steroid Conversion Calculator
Convert between corticosteroid dosages based on anti-inflammatory potency including prednisone, methylprednisolone, dexamethasone, and hydrocortisone equivalents
tPA Calculator – Stroke Dosing
Calculate alteplase (tPA) dosing for acute ischemic stroke treatment including bolus and infusion protocols with comprehensive safety guidelines for healthcare professionals
Tramadol Dosage Calculator
Calculate safe tramadol dosing for acute and chronic pain management with age-based adjustments, contraindications, and comprehensive safety protocols for healthcare professionals
Tylenol Dosage Calculator
Calculate safe Tylenol (acetaminophen) dosage
Tylenol Overdose Calculator
Calculate N-acetylcysteine (NAC) antidote dosing and assess acetaminophen toxicity risk using Rumack-Matthew nomogram for emergency medical treatment
Warfarin Dosing Calculator
Calculate warfarin (Coumadin) dose adjustments based on current INR levels and target ranges with evidence-based anticoagulation management
Other Calculators
20/20 Vision Calculator for 2020
Calculate visual acuity and 20/20 vision assessment for 2020 standards
Age Calculator
Calculate exact age in years, months, and days
Aldrete Score Calculator
Calculate Aldrete recovery score for post-anesthesia discharge readiness
BASDAI Score Calculator
Calculate Bath Ankylosing Spondylitis Disease Activity Index score
Beighton Score Calculator
Calculate Beighton hypermobility score for joint flexibility assessment
Berg Balance Test Calculator
Calculate Berg Balance Scale score for fall risk assessment
Centor Score Calculator (Modified/McIsaac)
Calculate Centor criteria score for streptococcal pharyngitis diagnosis
DASI Calculator (Duke Activity Status Index)
Calculate Duke Activity Status Index for functional capacity assessment
Dog Walking Benefits Calculator
Calculate health benefits and calories burned from dog walking
EASI Score Calculator
Calculate Eczema Area and Severity Index score for atopic dermatitis
Fatigue Severity Scale Calculator
Calculate fatigue severity scale score for chronic fatigue assessment
Free Testosterone Calculator — with Bioavailable Levels
Calculate free and bioavailable testosterone levels from total testosterone
Gut Microbiome Score Calculator
Calculate gut microbiome health score based on dietary and lifestyle factors
Height Calculator
Predict adult height for children
Hot Car Calculator
Calculate dangerous temperature rise in parked vehicles for safety
Noise Pollution Calculator - Maximal Exposure Time
Calculate safe noise exposure time limits and hearing protection needs
Pokémon GO Weight Loss Calculator
Calculate calories burned and weight loss potential from Pokémon GO gameplay
Time Of Death Calculator
Calculate estimated time of death using body temperature and environmental factors