Average BMR Calculator by Age and Sex
Pick your sex and age to see the average basal metabolic rate (BMR) for that age group. Based on the standard BMR-per-kg values and reference body weights from Japan's Dietary Reference Intakes. Enter your own weight to also estimate your personal BMR.
Last updated:
Input
Sex
Male
yrs
kg
Enter your weight to also estimate your own BMR from the age-group standard value.
Result
Average BMR for Male, 30โ49 yrs
1,532kcal/day
BMR standard value
22.5 kcal/kg/day
Reference weight
68.1 kg
Average BMR by age and sex
| Age | Standard (kcal/kg/day) | Ref. weight (kg) | Average BMR (kcal/day) |
|---|---|---|---|
| 1โ2 yrs | 61 | 11.5 | 702 |
| 3โ5 yrs | 54.8 | 16.5 | 904 |
| 6โ7 yrs | 44.3 | 22.2 | 983 |
| 8โ9 yrs | 40.8 | 28 | 1,142 |
| 10โ11 yrs | 37.4 | 35.6 | 1,331 |
| 12โ14 yrs | 31 | 49 | 1,519 |
| 15โ17 yrs | 27 | 59.7 | 1,612 |
| 18โ29 yrs | 23.7 | 64.5 | 1,529 |
| 30โ49 yrs | 22.5 | 68.1 | 1,532 |
| 50โ64 yrs | 21.8 | 68 | 1,482 |
| 65โ74 yrs | 21.6 | 65 | 1,404 |
| 75+ yrs | 21.5 | 59.6 | 1,281 |
How it works
- The average BMR is calculated from the standard BMR-per-kg value (kcal/kg body weight/day) and the reference body weight (kg) in Japan's Dietary Reference Intakes (2020).
- Average BMR for an age group = standard BMR-per-kg value x reference body weight.
- If you enter your weight, your personal BMR = standard BMR-per-kg value x your weight is also shown.
- The standard value is the BMR per kilogram of body weight; it is larger at younger ages and decreases with age.
- The average is a representative figure for a group and differs from any individual depending on body composition and other factors, so use it as a reference.
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