Tools / Browser
Fitness calculators
Estimates for body composition, nutrition, strength, hydration and heart rate. Free, with no sign-up. Nothing you type is sent anywhere.
Body composition
3 calculators
Nutrition
4 calculators
- TDEE calculatorResting energy and total daily energy expenditure from the Mifflin-St Jeor equation.
- Macro calculatorDaily calories, protein, fat and carbohydrate for a cut, maintenance or a bulk.
- Protein calculatorA daily protein range for your body weight and training goal.
- Calorie deficit and goal date calculatorHow long a weight change takes at a weekly rate, and the daily calorie change it needs.
Strength
3 calculators
- One-rep max calculatorEstimated one-rep max from a set of reps, with a rep-max table for programming.
- Plate calculatorThe plates to load on each side of the bar for a target weight, in kilograms or pounds.
- DOTS and Wilks calculatorDOTS and Wilks scores for comparing a powerlifting total across body weights.
Water
1 calculator
Cardio
1 calculator
How they work
- Every calculator runs in your browser. Nothing you type is stored or sent anywhere.
- Your unit choice, metric or imperial, is remembered in this browser only.
- Results are general estimates, not medical advice. Each page shows its method and sources.