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BMR & TDEE Calculator

Estimate basal metabolic rate and daily calories (TDEE) using Mifflin–St Jeor.

Processing: runs in your browser, nothing uploaded

✓ Free to use✓ No sign-up needed✓ Nothing to install

About BMR & TDEE Calculator

Back-of-the-envelope math is where typos sneak into money and planning decisions. This bmr calculator page gives you bmr & tdee calculator without the clutter: estimate basal metabolic rate and daily calories (TDEE) using Mifflin–St Jeor.

What BMR & TDEE Calculator computes

Enter the fields on the page and read the result lines. The math follows the standard formula for this bmr calculator use case. Treat outputs as planning numbers — they omit taxes, fees, or policy rules unless the on-page notes say otherwise.

When the answer looks wrong

Check units first (percents vs decimals, years vs months, currency as plain numbers). Recalculate after fixing inputs. If your real product compounds or adds fees, switch to the matching calculator that models that behavior.

Where your data goes

BMR & TDEE Calculator runs in your browser for this job. Your values is not uploaded to FileToolsHub servers for the conversion itself, which matters when you are dealing with private notes, drafts, or local files.

How to use

  1. 1

    Enter the values in the fields below.

  2. 2

    Click Calculate for an instant result.

  3. 3

    Copy or note the output — math stays in your browser.

Privacy

Runs entirely in your browser — your values is not uploaded.

Frequently asked questions

Formula?

Mifflin–St Jeor BMR × activity multiplier for TDEE.

Medical advice?

No — estimates only. See a clinician for nutrition plans.

Is BMR & TDEE Calculator free?

Yes. BMR & TDEE Calculator is free for everyday use with no account required, and it runs in your browser.

Does BMR & TDEE Calculator upload my data?

No. BMR & TDEE Calculator processes your values locally in this tab.

Formula?

Mifflin–St Jeor BMR × activity multiplier for TDEE.

Medical advice?

No — estimates only. See a clinician for nutrition plans.

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