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Calorie Calculator

Estimate BMR and daily calorie needs (TDEE) from age, height, weight, and activity — in your browser.

Tool workspace

Educational BMR and TDEE estimates only — not medical, nutrition, or weight-loss advice. Runs locally in your browser; measurements are not uploaded.

How it works

Enter sex, age, height, weight, and activity level. Choose metric (kg/cm) or imperial (lb/in).

BMR defaults to Mifflin–St Jeor; Harris–Benedict (revised) is optional. TDEE multiplies BMR by a standard activity factor (sedentary 1.2 through extra active 1.9).

Results update as you type. Empty incomplete inputs clear the result—no error. Out-of-range values show a validation message.

Disclaimer: educational estimates only — not medical, nutrition, diet, or weight-loss advice.

Examples

  • Male, 30y, 175 cm, 70 kg, moderately active (Mifflin) → BMR ≈ 1649, TDEE ≈ 2556 kcal/day
  • Same person in imperial: 69 in, 154 lb → same estimate within rounding

Privacy

Privacy: this tool processes measurements locally in your browser. We do not log or store what you enter. Login is not required. Not medical advice.

FAQ

Is this medical advice?

No. Results are educational estimates only and are not medical, nutrition, or weight-loss advice.

Are my measurements uploaded?

No. Calculation runs entirely in your browser. We do not log what you enter.

Which formula should I use?

Mifflin–St Jeor is the default for most adults. Harris–Benedict (revised) is offered as an alternate published equation.

Do I need an account?

No. All published tools work for guests without login.

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