Health, nutrition, fitness and medical calculators
60 free calculators
Calculate your Body Mass Index based on height and weight.
Estimate your body fat percentage using Navy method.
Calculate your ideal body weight based on multiple formulas.
Calculate BMI percentile for children and teens aged 2-19.
Calculate your WHR to assess body fat distribution and health risks.
Calculate your lean body mass (muscle, bone, organs).
Calculate BSA using the Mosteller formula (medical dosing).
Determine if you have a small, medium, or large body frame.
Calculate ABW for obese patients (medical/nutrition use).
Calculate PI (alternative to BMI, better for tall/short people).
Quick estimate of ideal weight using the simple Broca formula.
Calculate ideal body weight using the Devine formula (1974).
Calculate ideal body weight using the Hamwi formula (1964).
Estimate your metabolic age based on BMR and body composition.
Estimate visceral fat level and associated health risks.
Calculate daily calorie needs for weight loss, maintenance, or gain.
Calculate Total Daily Energy Expenditure based on activity.
Calculate Basal Metabolic Rate (calories burned at rest).
Calculate optimal protein, carbs, and fat intake for your goals.
Calculate optimal daily protein intake for your goals.
Calculate optimal carb intake based on activity and goals.
Calculate optimal dietary fat intake for health and hormones.
Calculate daily water needs based on weight and activity.
Calculate optimal calorie deficit for healthy fat loss.
Calculate optimal calorie surplus for muscle gain (bulking).
Calculate macros for ketogenic (very low-carb) diet.
Plan eating and fasting windows for intermittent fasting.
Calculate calories and macros per meal for your daily targets.
Calculate calories and macros from food weight and composition.
Calculate calories from alcoholic beverages.
Calculate your estimated due date based on last menstrual period.
Find out how many weeks pregnant you are today.
Estimate when conception occurred based on due date or LMP.
Predict your next ovulation and fertile window.
Calculate your most fertile days for conception.
Predict baby gender using ancient Chinese calendar (for fun).
Calculate precise gestational age from ultrasound or LMP.
Estimate fetal weight from ultrasound measurements.
Calculate hCG doubling time to assess early pregnancy viability.
Calculate due date for IVF pregnancies (transfer date method).
Calculate training heart rate zones for optimal workouts.
Calculate your 1RM and training percentages for strength workouts.
Calculate pace, speed, and time for running distances.
Predict race times across different distances from known performance.
Calculate calories burned during various exercises and activities.
Convert steps to distance (km/miles) based on stride length.
Estimate calories burned from daily steps.
Estimate VO2 max (aerobic fitness) from running performance.
Plan marathon pace strategy and split times.
Calculate calories burned during cycling based on speed and terrain.
Estimate BAC and time to sober up from alcohol consumption.
Calculate medication dose based on body weight.
Estimate kidney function using CKD-EPI equation.
Estimate creatinine clearance using Cockcroft-Gault equation.
Calculate anion gap from electrolytes (metabolic acidosis evaluation).
Calculate albumin-corrected calcium level.
Correct sodium level for hyperglycemia.
Categorize blood pressure and assess cardiovascular risk.
Convert HbA1c to estimated average glucose and diabetes risk.
Calculate transferrin saturation from iron and TIBC.
