How to Calculate Resting Metabolic Rate with Mifflin-St Jeor
The Mifflin-St Jeor equation is RMR = 10 x weight(kg) + 6.25 x height(cm) - 5 x age + 5 for men (-161 instead of +5 for women). A 30-year-old man, 175 cm and 70 kg, comes to about 1649 kcal/day.
Open the interactive Everyday Lifestyle tool →Formula: Men: RMR = 10w + 6.25h - 5a + 5; Women: RMR = 10w + 6.25h - 5a - 161
Key facts
| Formula | Men: RMR = 10w + 6.25h - 5a + 5; Women: RMR = 10w + 6.25h - 5a - 161 |
|---|---|
| Men, 30y/175cm/70kg | ~1649 kcal/day |
| Women, 28y/163cm/60kg | ~1318 kcal/day |
| Units | w=kg, h=cm, a=years |
Frequently asked questions
What is resting metabolic rate (RMR)?
The calories your body burns at rest to maintain basic functions, commonly estimated with the Mifflin-St Jeor equation from weight, height, and age.
What is the RMR for a 70 kg, 175 cm, 30-year-old man?
About 1649 kcal/day: 10 x 70 + 6.25 x 175 - 5 x 30 + 5 = 1649 kcal/day.
Is RMR the same as BMR?
They are closely related and often estimated with the same formula; RMR is typically measured under slightly less strict conditions and tends to run a bit higher in practice.
Related pages
The calculations on this page are estimates based on common general-purpose formulas. They are not medical advice -- consult a doctor or other qualified professional for decisions about your health.
Resting Metabolic Rate (RMR) Calculator is part of Everyday Lifestyle on GOAT Lab — a free reference you can use without signing up, and it works offline. Open the tool above for any custom value.
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