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BMR Calculator

Free BMR calculator — estimate your basal metabolic rate (calories burned at rest) using the Mifflin-St Jeor equation, in your browser.

SexAge (years)Weight (kg)Height (cm)

Runs entirely in your browser — nothing you enter is uploaded or stored.

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Frequently asked questions

Is my data uploaded?

No. This calculator runs entirely in your browser — the numbers you enter are never sent to a server. You can verify it in the Network tab or our Content-Security-Policy.

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