Fitness Calculators
Free tools to help you plan and optimize your training.
TDEE Calculator
Calculate your Total Daily Energy Expenditure and BMR using the Mifflin-St Jeor equation. Plan your nutrition with all activity levels.
Body Fat Calculator
Estimate your body fat percentage using the US Navy method. Get fat mass, lean mass, and category breakdown.
One Rep Max Calculator
Estimate your 1RM using multiple proven formulas. Get a percentage-based rep range table for programming your training.
Plate Calculator
Enter a target barbell weight and see exactly which plates to load on each side. Supports lbs and kg.
RPE Calculator
Estimate your 1RM from RPE and get a complete load table showing what weight to use for any rep/RPE combination.
WILKS & DOTS Calculator
Compare powerlifting strength across weight classes. Calculate your WILKS and DOTS scores with strength classifications.