Health
Health calculators
Reference calculators for reviewing personal indicators and understanding general health and wellness estimates.
BMI calculator
Calculate body mass index and view the estimated healthy weight range for your height.
Use ->Body fat percentage calculator
Estimate body fat percentage from circumference measurements and review measurement sensitivity.
Use ->TDEE calculator
Estimate basal metabolic rate, total daily energy expenditure, and calorie targets by goal.
Use ->Exercise calories burned calculator
Estimate total and active calories burned from weight, duration, activity, and intensity.
Use ->Macro calculator
Calculate daily protein, carbohydrate, and fat targets from calories, weight, and goal.
Use ->Daily protein calculator
Calculate a daily protein range based on weight, goal, and type of training.
Use ->Calorie deficit calculator
Estimate daily calories, calorie deficit, weekly weight-loss rate, and goal timeline.
Use ->Pregnancy due date calculator
Estimate due date, gestational age, delivery window, and confidence from LMP, ultrasound, IVF, or an official due date.
Use ->Ovulation calculator
Estimate the fertile window, probable ovulation, next period, and confidence level from cycle information.
Use ->Maximum heart rate calculator
Estimate maximum heart rate by age and view general ranges for moderate and vigorous activity.
Use ->Heart rate zones calculator
Calculate five training zones from maximum heart rate percentage or the Karvonen heart rate reserve method.
Use ->Daily water intake calculator
Estimate a practical hydration range from weight, exercise, sweat level, and heat exposure.
Use ->One-rep max calculator
Estimate your one-repetition maximum, compare Epley and Brzycki, and calculate practical training loads.
Use ->VO2 max calculator
Estimate VO2 max using the Cooper or Rockport test and compare results from the same method.
Use ->Running pace calculator
Calculate pace, time, or distance and view equivalent speeds and cumulative race splits.
Use ->Race time predictor
Predict race times and paces for other distances from a recent performance and assess prediction quality.
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