Web app · SvelteKit

Calorie Calculator

Estimate BMR and daily calorie needs using metric or imperial measurements, activity settings and three calculation formulas.

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Included in this template

Metric and imperial inputs with unit conversion
Mifflin–St Jeor, Harris–Benedict and Katch–McArdle formulas
BMR, daily energy and optional macronutrient estimates

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Before using this template

This calculator provides informational estimates for adults aged 18–80. It is not medical or nutrition advice. Enter valid measurements and review any health or dietary decisions with an appropriate professional.

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Business and client use

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