BMR (Mifflin-St Jeor)
What is the BMR Calculator?
The BMR Calculator is a free online calculator tools from Markvibe. Calculate your basal metabolic rate (Mifflin-St Jeor). It runs entirely in your browser — your data never gets uploaded — and works on desktop, tablet and mobile with no sign-up.
Reviewed by The Markvibe Team · Last updated 2026-06-28
Example
A worked example so you know exactly what to expect.
Input
(your input goes here)
Output
(the BMR Calculator runs in your browser and shows the result instantly)
How to use BMR Calculator
- 1Open the BMR Calculator above on MarkVibe — it loads instantly with no sign-up.
- 2Enter or paste your input into the BMR Calculator field.
- 3Tweak any options to control exactly how BMR Calculator produces the result.
- 4Click the action button — BMR Calculator runs locally in your browser and shows the result.
- 5Copy the output to your clipboard or save it, then share the BMR Calculator link with anyone who needs it.
Why use our BMR Calculator
- ✓ 100% free BMR Calculator — no sign-up, no watermark, no hidden limits
- ✓ Runs entirely in your browser so your data never leaves your device
- ✓ Blazing-fast results — built for speed by Markvibe
- ✓ Mobile-friendly: use BMR Calculator on phone, tablet, or desktop
- ✓ One of 184+ calculator tools utilities under one roof
- ✓ Privacy-first: no tracking of inputs, no accounts, no ads in the tool area
BMR Calculator — frequently asked questions
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