Fitness Calculators

A comprehensive suite of free, scientifically-backed health and fitness calculators designed to help you pinpoint your exact metabolic data.

Calorie Calculator (TDEE)

Calculate your exact daily caloric needs using the Harris-Benedict equation to lose fat or build muscle.

Determine the exact ratio of Protein, Carbohydrates, and Fats you need to hit your fitness goals.

Estimate your true strength potential and 1RM without risking injury on a max out attempt.

Check your Body Mass Index (BMI) against standard CDC health categories.

Use the famous U.S. Navy Method to calculate your body fat percentage with just a tape measure.

Find your scientifically estimated ideal body weight based on the Devine Formula.

Calculate how much of your weight is lean mass (muscle, bone, water) vs fat using the Boer formula.