How to Estimate Basal Metabolic Rate (BMR)
A quick approximation is BMR ~ 22 x weight (kg) for men and ~21 x weight for women. A 65 kg man is about 1430 kcal/day; a 55 kg woman about 1155 kcal/day. TDEE = BMR x PAL (1.2-1.9).
Open the interactive Everyday Lifestyle tool →Key facts
| Men (approx.) | BMR = 22 x kg |
|---|---|
| Women (approx.) | BMR = 21 x kg |
| 65 kg man | 1430 kcal/day |
| 55 kg woman | 1155 kcal/day |
| TDEE | BMR x PAL (1.2-1.9) |
Frequently asked questions
What is the BMR of a 65 kg man?
About 1430 kcal/day using the quick estimate 22 x 65. The full Mifflin-St Jeor formula refines this with height and age.
What is the Mifflin-St Jeor formula?
Men: 10 x kg + 6.25 x cm - 5 x age + 5; women subtract 161 instead of adding 5.
How do I get my daily calorie need (TDEE)?
Multiply BMR by a physical activity level (PAL) from 1.2 (sedentary) to 1.9 (very active).
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.
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