BMR Calculator
Calories your body burns at rest.
- Harris-Benedict (revised)
- 1,696 kcal/day
- Per hour
- 69 kcal
How this calculator works
Basal metabolic rate is the energy used to keep your body running at complete rest. Two widely used equations are shown for comparison.
Formula
Mifflin-St Jeor: 10·kg + 6.25·cm − 5·age + 5 (men) or − 161 (women)
Example
A 30-year-old man who weighs 70 kg and is 175 cm tall has a BMR of about 1,649 kcal.
When to use it
- Base figure for calorie planning
- Comparing metabolism estimates
- Understanding energy needs during recovery
Frequently asked questions
What is the difference between BMR and TDEE?
BMR is the energy you burn at complete rest. TDEE adds the energy used for daily activity and exercise, so it is always higher.
Can I change my BMR?
Building muscle through strength training raises it slightly. Age, sex, height and weight explain most of the difference between people.
Offers from our partners
Smart body scales
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Meal planning apps
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Fitness trackers
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Learn more
How to calculate macros, and turn the numbers into actual meals
A step-by-step way to calculate protein, carbs and fat, plus how to turn those numbers into everyday meals.
What is BMR? Where your daily calories actually go
Most of the calories you burn each day go to simply keeping you alive. Here is what BMR is, how it is calculated and what changes it.
How many calories do I need a day? Estimate it, then check it against reality
Calculators give you a starting estimate. Here is how daily calorie needs are worked out, and how to find your real number.