Health
BMI, calories, and fitness tracking.
Addiction medicine calculators
General screening for substance addiction risk.
Calculate standard units in an alcoholic drink.
Rapid screen for unhealthy alcohol use.
The Alcohol Use Disorders Identification Test (AUDIT).
Estimate Blood Alcohol Content (BAC).
Calculate caffeine intake and limits.
Quick 4-question screen for potential alcohol addiction.
Calculate money spent and time lost to smoking.
Clinical Institute Withdrawal Assessment for Alcohol (CIWA-Ar).
Drug Use Disorders Identification Test.
Estimate EtG detection window in urine after alcohol consumption.
Assess intensity of physical addiction to nicotine.
Finnegan Neonatal Abstinence Scoring System.
Michigan Alcoholism Screening Test (MAST).
Clinical Opiate Withdrawal Scale (COWS).
Calculate pack-years of smoking history.
Short Alcohol Screening Test (SAST).
Alcohol screening for pregnant women.
Five-item scale for screening pregnant women for alcohol use.
Convert alcohol units to milliliters.
Calculate the annual cost of vaping.
Estimate time for weed tolerance break.
Convert wine volume to equivalent beer volume based on alcohol content.
Army calculators
Calculate Army Combat Fitness Test (ACFT) score.
Calculate US Army Fitness Test (AFT) performance score.
Calculate US Air Force Physical Training test score.
Calculate Army Physical Fitness Test (APFT) score.
Estimate body fat percentage using US Army standards.
Estimate body fat percentage using US Navy standards.
Calculate US Navy Physical Readiness Test (PRT) score.
BMI calculators
Calculate Body Mass Index (BMI).
Calculate BMI for children and adolescents.
BMI specifically tailored with ranges for men.
BMI calculation for teenagers.
BMI specifically tailored with ranges for women.
Calculate how much weight you need to lose to reach a target BMI.
BMI calculation with specialized ranges for older adults.
Body Composition
Body Mass Index (BMI)
Body measurements calculators
Calculate A Body Shape Index (ABSI) based on waist circumference, height, and BMI.
Calculate Adjusted Body Weight (AjBW) for medical dosing.
Calculate Body Adiposity Index using hip circumference and height.
Estimate body fat percentage using US Navy method.
Determine your body frame size from wrist circumference.
Determine your body shape category.
Calculate Body Roundness Index (BRI).
Calculate body surface area using Mosteller formula.
Calculate draw length for archery.
Estimate height using knee height for bedridden patients.
Determine your face shape based on dimensions.
Calculate Fat-Free Mass Index (FFMI).
Calculate ideal body weight using different formulas.
Calculate target heart rate using the Karvonen formula.
Calculate lean body mass (LBM).
Check if your weight is in the overweight range based on BMI.
Calculate Ponderal Index for body proportion.
Calculate Relative Fat Mass using height and waist.
Estimate body fat using skinfold measurements (Jackson-Pollock).
Calculate waist-to-hip ratio for health risk assessment.
Calculate waist-to-height ratio.
Calculate the percentage of weight lost.
Calories
Cardiovascular system calculators
Calculate predicted distance for the 6MWT.
Calculate Ankle-Brachial Index (ABI).
Calculate aortic valve area using the continuity equation.
Estimate your vascular age based on risk factors.
Check your blood pressure category.
Calculate Cardiac Index (CI).
Calculate Cardiac Output using stroke volume and heart rate.
Calculate Cerebral Perfusion Pressure (CPP).
Calculate stroke risk for patients with atrial fibrillation.
Estimate 10-year risk of cardiovascular disease.
Calculate Dual Antiplatelet Therapy (DAPT) score.
Calculate cardiac output via Doppler echocardiography.
Calculate Duke Treadmill Score for prognosis.
Convert ECG small and large boxes to time.
Calculate heart rate from ECG strip.
Calculate Effective Regurgitant Orifice Area (EROA).
Calculate 10-year cardiovascular risk using Framingham criteria.
Calculate valve area using the Gorlin formula.
Calculate GRACE risk score for ACS patients.
Calculate MICA (Gupta) perioperative cardiac risk.
Calculate bleeding risk for patients on anticoagulants.
Estimate life expectancy with heart failure (Seattle HF Model).
Predict 6-week risk of major adverse cardiac events.
Calculate Intracerebral Hemorrhage (ICH) volume using ABC/2.
Calculate Left Ventricular Mass Index (LVMI).
Calculate Mean Arterial Pressure (MAP).
Calculate mitral valve area using pressure half-time.
Assess VTE risk in hospitalized medical patients.
Apply Pulmonary Embolism Rule-out Criteria (PERC).
Calculate Proximal Isovelocity Surface Area (PISA).
Clinical probability score for pulmonary embolism.
Calculate Pulmonary Vascular Resistance (PVR).
Calculate corrected QT interval (Bazett formula).
Calculate Rate Pressure Product (RPP).
Revised Cardiac Risk Index for surgery.
Clinical probability score for PE.
Calculate Stroke Volume from Cardiac Output.
TIMI Risk Score for patients with STEMI.
TIMI Risk Score for patients with Unstable Angina or NSTEMI.
Diabetes calculators
Convert blood sugar between mg/dL and mmol/L.
Assess the risk of developing type 2 diabetes.
Calculate anion gap for DKA assessment.
Convert A1c to estimated average glucose (eAG).
Determine the glycemic index level of foods.
Calculate glycemic load (GL) for a food serving.
Convert average blood sugar to A1c percentage.
Calculate insulin resistance using the HOMA-IR model.
Estimate insulin dose for a meal.
Calculate Quantitative Insulin Sensitivity Check Index (QUICKI).
Calculate insulin dose for children with type 1 diabetes using the Warsaw method.
Dietary calculators
Calculate your recommended maximum daily added sugar intake.
Calculate Basal Energy Expenditure (BEE).
Calculate Basal Metabolic Rate (BMR) using the Harris-Benedict equation.
Calculate BMR using the Katch-McArdle formula based on lean body mass.
Calculate Basal Metabolic Rate using the Mifflin-St Jeor equation.
Estimate daily calories needed based on activity level.
Calculate your calorie deficit for weight loss.
Calculate daily carbohydrate requirements.
Assess health risks related to dietary habits.
Calculate Dietary Reference Intakes (DRI).
Calculate Estimated Energy Requirement (EER).
Calculate daily fat requirements.
Calculate recommended daily fiber intake.
Estimate weight loss after gastric sleeve surgery.
Calculate your macros based on If It Fits Your Macros (IIFYM) principles.
Calculate your keto macros for ketosis.
Calculate your ideal macronutrient breakdown.
Calculate calories needed to maintain current weight.
Sum up calories for a single meal.
Calculate daily vitamin and mineral needs.
Calculate net carbs by subtracting fiber and sugar alcohols.
Calculate daily protein needs based on weight and activity.
Calculate calorie burn during low-activity periods.
Calculate your Resting Metabolic Rate (RMR).
A simple way to estimate target calorie intake.
Convert salt weight to sodium content.
Calculate your Total Daily Energy Expenditure (TDEE).
Check if you are meeting basic vitamin needs.
Calculate daily Vitamin A requirements.
Calculate daily Vitamin D requirements based on age.
Calculate calories needed for weight gain.
Estimate food points based on macros.
Fitness
Estimate your one-rep max for bench press based on weight and repetitions.
Calculate your one-rep max (1RM) for any exercise.
Estimate your VO2 max based on the distance covered in 12 minutes.
Calculate training heart rate zones.
Calculate your Body Mass Index (BMI).
Calculate your Basal Metabolic Rate (BMR).
Estimate your body fat percentage using the BMI method.
Calculate your ideal body weight based on height.
Estimate calories burned during an activity.
Calculate waist-to-hip ratio to assess health risk.
Calculate your target heart rate zones.
Estimate your one-rep max for weightlifting.
Calculate lean body mass.
Estimate body fat percentage.
Calculate waist-to-height ratio.
Body Mass Index using kg and cm.
Calculate heart rate zones using reserve.
Calculate lean body mass.
Estimate calories burned while cycling.
Estimate calories from daily steps.
Calculate Basal Metabolic Rate.
Calculate grams for 40/30/30 split.
Estimate 1-rep max.
Calculate WHR for health risk.
Calculate daily protein requirements.
Estimate calories from walking.
Total Daily Energy Expenditure.
Calculate water per hour.
Reverse Diet Calculator — health long-tail query, instant estimate.
Body Recomposition Calculator — health long-tail query, instant estimate.
Lean Bulk Calculator — health long-tail query, instant estimate.
Mini Cut Calculator — health long-tail query, instant estimate.
Creatine Loading Calculator — health long-tail query, instant estimate.
Creatine Maintenance Calculator — health long-tail query, instant estimate.
Caffeine Half-Life Calculator — health long-tail query, instant estimate.
Hydration During Exercise Calculator — health long-tail query, instant estimate.
Sweat Rate Calculator — health long-tail query, instant estimate.
Electrolyte Replacement Calculator — health long-tail query, instant estimate.
Sodium Loss Calculator — health long-tail query, instant estimate.
Running Hydration Calculator — health long-tail query, instant estimate.
Rest Day Calories Calculator — health long-tail query, instant estimate.
HRV Readiness Calculator — health long-tail query, instant estimate.
Sleep Efficiency Calculator — sleep long-tail query, instant estimate.
Sleep Chronotype Calculator — sleep long-tail query, instant estimate.
Circadian Bedtime Calculator — sleep long-tail query, instant estimate.
Nap Time Calculator — sleep long-tail query, instant estimate.
Blue Light Exposure Calculator — sleep long-tail query, instant estimate.
Screen Time Sleep Loss Calculator — sleep long-tail query, instant estimate.
Menstrual Cycle Length Calculator — health long-tail query, instant estimate.
Fertile Window Probability Calculator — health long-tail query, instant estimate.
Lactation Milk Storage Calculator — health long-tail query, instant estimate.
Growth Velocity Calculator — health long-tail query, instant estimate.
Blood Donation Eligibility Date Calculator — health long-tail query, instant estimate.
Iron Intake Calculator — health long-tail query, instant estimate.
Fiber per Meal Calculator — health long-tail query, instant estimate.
Added Salt Calculator — health long-tail query, instant estimate.
Sugar Equivalent Calculator — health long-tail query, instant estimate.
Alcohol Calorie Budget Calculator — health long-tail query, instant estimate.
Protein Timing Calculator — instant estimate with editable inputs.
Leucine Threshold Calculator — instant estimate with editable inputs.
Plant Protein Completeness Calculator — instant estimate with editable inputs.
Meal Timing Calculator — instant estimate with editable inputs.
Intermittent Fasting Window Calculator — instant estimate with editable inputs.
Fasting Refeed Calculator — instant estimate with editable inputs.
Electrolyte Mix Calculator — instant estimate with editable inputs.
Homemade Oral Rehydration Solution Calculator — instant estimate with editable inputs.
Race Day Carb Calculator — instant estimate with editable inputs.
Race Day Sodium Calculator — instant estimate with editable inputs.
Ultramarathon Pace Calculator — instant estimate with editable inputs.
Trail Running Pace Adjustment Calculator — instant estimate with editable inputs.
Elevation Gain Pace Calculator — instant estimate with editable inputs.
Running Shoe Rotation Cost Calculator — instant estimate with editable inputs.
Running Shoe Mileage Calculator — instant estimate with editable inputs.
Strength Set Volume Calculator — instant estimate with editable inputs.
Training Frequency Calculator — instant estimate with editable inputs.
Progressive Overload Calculator — instant estimate with editable inputs.
Deload Week Calculator — instant estimate with editable inputs.
Hypertrophy Volume Calculator — instant estimate with editable inputs.
Powerlifting Attempt Calculator — instant estimate with editable inputs.
Wilks to DOTS Converter — instant estimate with editable inputs.
DOTS Calculator — instant estimate with editable inputs.
IPF GL Points Calculator — instant estimate with editable inputs.
RPE Load Calculator — instant estimate with editable inputs.
Reps in Reserve Calculator — instant estimate with editable inputs.
Velocity Based Training Calculator — instant estimate with editable inputs.
Jump Height from Flight Time Calculator — instant estimate with editable inputs.
Vertical Jump Power Calculator — instant estimate with editable inputs.
Grip Strength Percentile Calculator — instant estimate with editable inputs.
Walking Pace by Age Calculator — instant estimate with editable inputs.
Step Goal by Weight Loss Calculator — instant estimate with editable inputs.
Sedentary Time Calculator — instant estimate with editable inputs.
Desk Break Reminder Calculator — instant estimate with editable inputs.
Blue Zone Life Habits Calculator — instant estimate with editable inputs.
Meditation Streak Calculator — instant estimate with editable inputs.
Stress Score Calculator — instant estimate with editable inputs.
Burnout Risk Calculator — instant estimate with editable inputs.
Work-Life Balance Calculator — instant estimate with editable inputs.
Screen Time Eye Strain Calculator — instant estimate with editable inputs.
Contact Lens Supply Calculator — instant estimate with editable inputs.
Medication Refill Date Calculator — instant estimate with editable inputs.
Pill Supply Calculator — instant estimate with editable inputs.
Medication Adherence Calculator — instant estimate with editable inputs.
Health Insurance Out-of-Pocket Calculator — instant estimate with editable inputs.
Deductible Met Calculator — instant estimate with editable inputs.
Copay vs Coinsurance Calculator — instant estimate with editable inputs.
HSA Contribution Impact Calculator — instant estimate with editable inputs.
FSA Use-It-or-Lose-It Calculator — instant estimate with editable inputs.
Medical Bill Payment Plan Calculator — instant estimate with editable inputs.
Dental Insurance Value Calculator — instant estimate with editable inputs.
Vision Insurance Value Calculator — instant estimate with editable inputs.
Therapy Cost Calculator — instant estimate with editable inputs.
Childcare Illness Days Calculator — instant estimate with editable inputs.
Baby Diaper Size Cost Calculator — instant estimate with editable inputs.
Baby Wipes Cost Calculator — instant estimate with editable inputs.
Childcare Cost per Hour Calculator — instant estimate with editable inputs.
Elder Care Cost Calculator — instant estimate with editable inputs.
Caregiver Pay Calculator — instant estimate with editable inputs.
Family Health Budget Calculator — instant estimate with editable inputs.
General
Gynecology & pregnancy calculators
Track Basal Body Temperature to predict ovulation.
Estimate annual cost of birth control methods.
Assess readiness of the cervix for induction of labor.
Estimate the risk of breast cancer recurrence.
Calculate 5-year and lifetime breast cancer risk (Gail Model).
Calculate extra calories needed while breastfeeding.
Estimate ovulation dates while taking Clomid.
Estimate the date of conception based on due date or last period.
Calculate gestational age from crown-rump length (CRL).
Calculate estimated due date (EDD) using Naegele's rule.
Calculate Estimated Date of Delivery (EDD) from multiple methods.
Estimate success probability of future live birth from frozen eggs.
Estimate monthly chance of conception based on age.
Determine the correct breast pump flange size.
Compare fundal height measurement to gestational age.
Calculate how many weeks pregnant you are.
Calculate hCG doubling time during early pregnancy.
Estimate the window of embryo implantation.
Calculate due date after IVF based on transfer date.
Calculate the length of your luteal phase.
Assess fetal anemia risk via Middle Cerebral Artery (MCA) doppler.
Calculate gestational age from gestational sac measurements.
Assess risk for chromosomal abnormalities from NT scan.
Predict your most fertile days.
Measure the effectiveness of a contraceptive method.
Predict your next period dates.
Find out the best time to take a pregnancy test.
Calculate Pg/E2 ratio for hormonal balance assessment.
Calculate conception date and LMP from your due date.
Interpret semen analysis results based on WHO standards.
Estimate risk of stillbirth based on clinical factors.
Calculate T/E2 ratio for hormonal balance.
Estimate probability of having twins.
Predict success rate of Vaginal Birth After Cesarean.
Assess Venous Thromboembolism risk during pregnancy.
Health
Medical
Determine possible blood types of a child based on parents' blood types.
Estimate Blood Alcohol Content (BAC) based on consumption, body weight, and time.
Determine blood pressure category.
Estimate the most fertile days.
Estimate the expected due date.
Convert focal length to diopters.
Metabolic disorders calculators
Calculate your total-to-HDL cholesterol ratio.
Convert cholesterol values between mg/dL and mmol/L.
Assessment tool for gout diagnosis criteria.
Calculate LDL cholesterol using the Friedewald equation.
Check criteria for metabolic syndrome.
Calculate Serum-Ascites Albumin Gradient.
Calculate Very Low-Density Lipoprotein (VLDL) cholesterol.
Nutrition
Estimate how many calories you need each day to maintain, lose, or gain weight.
Calculate your ideal body weight range.
Track safe caffeine consumption.
Calculate recommended daily protein intake.
Calculate recommended daily water intake.
Calculate your Total Daily Energy Expenditure.
Calculate daily macronutrient distribution.
Calculate calories needed to maintain weight.
Calculate daily water requirement.
Calculate daily protein requirement.
Protein per Meal Calculator — health long-tail query, instant estimate.
Meal Prep Macros Calculator — health long-tail query, instant estimate.
Calorie Cycling Calculator — health long-tail query, instant estimate.
Pregnancy
Sleep calculators
Calculate Apnea-Hypopnea Index for sleep apnea.
Measure daytime sleepiness with the Epworth scale.
Epworth Sleepiness Scale adapted for children.
Calculate when to wake up based on sleep cycles.
Calculate how much sleep you've missed.
Screen for obstructive sleep apnea risk.