Is there a file size limit?

No practical limit for most operations.

Results are generated using standard algorithms for maximum accuracy.

free

BMR Calculator — free

Calculate Basal Metabolic Rate and daily calorie needs.

Weight

Height

Age

Sex

Activity Level

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Result appears instantly in your browser.

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

Estimate calories burned during exercise.

Calculate your ideal weight range by height and gender.