Health & Fitness Calculators
BMI, calorie, macro, and pace calculators for everyday health and fitness questions — not medical advice, just the math.
- BMI Calculator
Calculate your Body Mass Index (BMI) from height and weight instantly. Free, instant, private.
- TDEE Calculator
Calculate your Total Daily Energy Expenditure (TDEE) and calorie needs based on activity level. Free, instant.
- Macro Calculator
Calculate protein, carb, and fat grams from a daily calorie target and macro ratio. Free, instant.
- Pace Converter
Convert running distance and time into pace per mile/km and speed. Free, instant.
- Water Intake
Calculate recommended daily water intake based on body weight and exercise. Free, instant.
- 1RM Calculator
Estimate your one-rep max (1RM) from a weight and rep count, plus a training percentage table. Free, instant.
- Due Date Calculator
Estimate a pregnancy due date and current week from the last menstrual period. Free, instant, private.