Calorie, TDEE, BMI, protein & water calculators

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ΣCalorieMath

Free calorie, TDEE, BMI, protein and water calculators with plain-English guides. Every number runs on published formulas you can check on our methodology page.

Calculators

TDEE & Calorie Calculator
BMI Calculator
Protein Calculator
Water Intake Calculator

Guides

All guides
Calories per day
Healthy BMI range
Calorie deficit

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Disclaimer

Health disclaimer: CalorieMath provides general educational estimates only. The calculators are not medical advice, diagnosis or treatment, and results vary from person to person. Talk to a qualified health professional before changing your diet — especially if you are pregnant, under 18, or managing a medical condition. See the full Disclaimer.

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