Free Nutrition Calculators

Get personalized nutrition recommendations based on your body stats and goals — completely free.

Calorie Calculator

Calculate your daily calorie needs (TDEE) based on age, weight, height and activity level.

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BMI Calculator

Calculate your Body Mass Index and find out if you're underweight, normal, overweight or obese.

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Macro Calculator

Get your daily protein, carbohydrate and fat targets based on your goal — loss, maintain or gain.

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Protein Calculator

Calculate your daily protein needs based on body weight, activity level and fitness goals.

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About Our Calculators

All calculators use evidence-based formulas (Mifflin-St Jeor for TDEE, standard BMI formula, WHO protein guidelines). Results are estimates — consult a registered dietitian for personalized medical advice.