BMI, calories, macros, pace, and fitness calculators
Calculate your Body Mass Index from height and weight. Supports metric and imperial units.
HealthCalculate your Basal Metabolic Rate using the Harris-Benedict equation. Find how many calories you burn at rest.
HealthCalculate your Total Daily Energy Expenditure based on BMR and activity level.
HealthCalculate how many calories you need daily based on your goal: lose, maintain, or gain weight.
HealthEstimate your body fat percentage using the U.S. Navy circumference method.
HealthCalculate your ideal body weight using multiple formulas: Devine, Robinson, Miller, and Hamwi.
HealthCalculate how much water you should drink daily based on weight, activity, and climate.
HealthCalculate running pace, time, or distance. Convert between min/km and min/mile.
HealthEstimate your one-rep max using the Epley formula from weight and reps performed.
HealthCalculate your daily protein, carb, and fat macros based on calories and diet type.
HealthCalculate your training heart rate zones based on age and resting heart rate.
HealthEstimate blood alcohol content based on drinks, weight, gender, and time. For educational purposes only.