Free tools
Fitness calculators that show their working.
Work out your daily calories, your macros and your one-rep max in a few seconds. Every calculator uses a published formula, explains it, and runs in your browser — nothing you type is sent anywhere.
- TDEE calculatorDaily calorie burn and BMR from the Mifflin-St Jeor equation, with targets for cutting and bulking.Open calculator →
- One-rep max calculatorEstimate your 1RM from any set using Epley and Brzycki, with a full percentage table for programming.Open calculator →
- Macro calculatorSplit your calories into protein, fat and carbs for a cut, maintenance or a bulk.Open calculator →
Learn the movements too
Numbers only help if the training behind them is solid. The exercise library has step-by-step form guides for the lifts these calculators are built around.
Bravel does the maths for you
In the app your calorie target, macros and training maxes update on their own as you log meals and lifts. Join the waitlist and get it at launch.
Launching soon