Calculators

Free fitness and nutrition calculators — metric and imperial, instant results, no signup. Each one explains the formula behind it and how to use the number.

• BMI Calculator

  Body mass index and where it falls on the WHO scale.

• Calorie Calculator

  Maintenance calories (TDEE) with targets for losing or gaining.

• Macro Calculator

  Protein, carbs, and fat split for your calories and goal.

• BMR Calculator

  Basal metabolic rate — calories burned at complete rest.

• Protein Intake Calculator

  Daily protein range by body weight and training goal.

• Ideal Weight Calculator

  Devine, Hamwi, Robinson, and Miller estimates for your height.