Fitness Tools & Calculators

Free, evidence-based calculators to support your fitness journey. No sign-up required.

BMI Calculator

Calculate your Body Mass Index from weight and height

Estimate daily calorie needs with the Mifflin-St Jeor equation

Get protein, carb, and fat targets for your goals

Estimate your 1RM from weight and reps using the Epley formula

Calculate pace per km and per mile for any race distance

Is your gym membership worth the cost? Find out