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BMR (Mifflin-St Jeor) Calculator

Basal metabolic rate using the Mifflin-St Jeor equation.

Compute basal metabolic rate (BMR) — the calories needed to keep your body functioning at rest — using the Mifflin-St Jeor equation, the modern industry standard.

Priya Venkatesan By Priya Venkatesan
Published Last reviewed 1 min read

Inputs

kg
cm
yrs

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Men: 10·kg + 6.25·cm − 5·yr + 5. Women: 10·kg + 6.25·cm − 5·yr − 161.

In depth

Compute basal metabolic rate (BMR) — the calories needed to keep your body functioning at rest — using the Mifflin-St Jeor equation, the modern industry standard.