Free Nutrition Calculators

Science-backed calculators to help you find your numbers. No signup required.

TDEE Calculator

Find out how many calories you burn per day based on your body and activity level.

Get your optimal daily protein, carbs, and fat targets for your specific goal.

Calculate how many calories to eat per day to reach your goal weight safely.

Find out exactly how much protein you need per day based on your weight and goals.

Calculate your Basal Metabolic Rate — the calories your body burns at rest.

Find your healthy weight range based on your height using four medical formulas.

Use our calculators to find your numbers, then grab a meal plan that matches your calorie target and goal.

Look up calories, macros, and micronutrients for common whole foods — plus meal ideas and goal-specific advice.