🧮 Nutrition Tools

Free, interactive calculators built on science-backed formulas to help you understand your body and reach your goals.

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BMR Calculator New

Calculate your Basal Metabolic Rate using Mifflin-St Jeor, Harris-Benedict, or Katch-McArdle formulas. Supports metric and imperial units.

Calculate BMR →
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TDEE Calculator

Find out your Total Daily Energy Expenditure based on your BMR and activity level — the number of calories you actually burn each day.

Calculate TDEE →
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BMI Calculator

Calculate your Body Mass Index and understand what it means in the context of overall health — with important caveats explained.

Calculate BMI →
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AI Dietitian

Generate a personalized day of meals powered by GPT-4o. Enter your calorie goal, diet type, and restrictions — get a full plan in seconds.

Generate Meal Plan →