BMR
Calculator
Results
- Estimated resting energy
- 1,780.00 kcal/day
Comparison
| Scenario | Resting energy |
|---|---|
| Selected sex equation | 1,780.00 kcal/day |
| Alternate sex equation | 1,614.00 kcal/day |
Mifflin–St Jeor equation components
| Weight component | 800.00 |
| Height component | 1,125.00 |
| Age component | -150.00 |
| Sex constant | 5.00 |
Formula
BMR = 10W + 6.25H − 5A + 5- W
- 80
- H
- 180
- A
- 30
= 1780.00
Note
This adult resting-energy equation is a population estimate, not a measurement, diagnosis, or personal nutrition prescription. Indirect calorimetry and qualified care may be appropriate for clinical decisions.
More in Health
See all →Frequently asked questions
What does BMR actually measure?+
Basal Metabolic Rate is the number of calories your body burns at complete rest just to keep vital functions running, such as breathing, circulation, and cell repair. It does not include any calories burned through movement, digestion, or exercise.
Which formula does this calculator use, and does it matter?+
Most BMR calculators use the Mifflin-St Jeor equation, which is generally considered more accurate for modern populations than the older Harris-Benedict formula. The differences between formulas are usually modest, within a few percent, but can matter for precise calorie planning.
Why do I need my BMR if I want to lose or gain weight?+
BMR is the foundation for estimating your total daily energy expenditure (TDEE) once activity level is factored in, and TDEE is what you actually compare against calorie intake to plan weight change. Using BMR alone without accounting for activity will underestimate how much you actually burn in a day.
Why is my BMR different from a friend with the same weight?+
BMR depends on height, age, sex, and body composition, not just weight, because muscle tissue burns more calories at rest than fat tissue. Two people of identical weight can have meaningfully different BMRs if their muscle mass or age differs.
Can I intentionally increase my BMR?+
Building muscle through resistance training is the most reliable way to raise BMR, since muscle tissue has a higher resting energy cost than fat. Severe calorie restriction, on the other hand, tends to lower BMR over time as the body adapts to conserve energy.