BMR Calculator
Calories your body burns at complete rest.
Reviewed by the Calculation Machine team · How we check our maths
Your values
ⓘ Live results
Results
- BMR
- 1,711 kcal/day
- Maintenance if moderately active
- 2,653 kcal/day
- Per hour at rest
- 71 kcal
| Activity level | Daily calories |
|---|---|
| Sedentary | 2,054 kcal |
| Lightly active | 2,353 kcal |
| Moderately active | 2,653 kcal |
| Very active | 2,952 kcal |
| Athlete | 3,252 kcal |
Quick answer
Basal metabolic rate is the energy your body uses at rest; the Mifflin-St Jeor equation is the most accurate common estimate.
The formula
BMR = 10·kg + 6.25·cm − 5·age + s (s = +5 male, −161 female)
Worked example
Worked example
Using the values the calculator loads with.
Inputs
- UnitsImperial (lb, in)
- Weight170
- Height69
- Age32 years
- SexMale
Result
- BMR1,711 kcal/day
- Maintenance if moderately active2,653 kcal/day
- Per hour at rest71 kcal
How to use the BMR Calculator
- 1Enter weight, height, age and sex.
- 2Read your BMR.
- 3Pick your activity level from the table for daily needs.
Frequently asked questions
BMR vs TDEE?
BMR is rest-only energy use. TDEE multiplies BMR by an activity factor to include movement, exercise and digestion.
Why Mifflin-St Jeor?
It has been validated as more accurate for modern populations than the older Harris-Benedict equation.
About this calculator
- Built and reviewed by the Calculation Machine team · How we build and test calculators
- Report an error