Health & Fitness
BMI, body fat, calories, macros, heart rate and training numbers.
12 calculators · 12 ready to use
BMI Calculator
essentialBody mass index in metric or imperial, with category and healthy range.
BMR Calculator
Basal metabolic rate — the calories you burn at complete rest.
TDEE Calculator
popularTotal daily energy expenditure from your BMR and activity level.
Calorie Deficit Calculator
Daily calories to lose or gain weight at a chosen rate.
Macro Calculator
Protein, carb and fat targets for your calories and goal.
Body Fat Calculator
Body fat percentage using the US Navy circumference method.
Ideal Weight Calculator
Healthy weight range from height using four established formulas.
Water Intake Calculator
Daily hydration target based on weight, activity and climate.
Heart Rate Zone Calculator
Max heart rate and the five training zones for your age.
One Rep Max Calculator
Estimate your 1RM from a set, plus a full percentage table.
Pace Calculator
Running pace, time or distance — solve for whichever you're missing.
Due Date Calculator
Estimated due date and current week from your last period.