BMR Calculator

BMR is short for Basal Metabolic Rate and represent the amount of calories your muscles burn every day just to maintain vital operations such as breathing or thinking. In other words, BMR rate is the amount of calories your body would burn if you were to stay in bed the whole day and do nothing at all!


Calculate BMR

Please select either metric BMR calculator (EU) or imperial BMR calculator (US).
Note: If entering height in feet and inches please only use 2 digits. Example: height of 6 foot and 1.5 inches should be entered as 6 foot 2 inches.

Harris J, Benedict F. 1919. A biometric study of basal metabolism in man. Washington DC: Carnegie Institute of Washington.

BMR Calculator

Select metric / imperial:
Your sex:
Your height:
in in centimeters (cm).
Your weight:
in in kilograms (kg).
Your age:
in years. Example “35”.
Select activity level:
Your required calorie intake is:

Results / Please note:
BMR calculator will calculate your basal metabolic rate. This is not your total daily calorie expenditure! If you want to know more about BMR read this article on what is basal metabolic rate.
To calculate how many calories you’ve burned during an activity try our calorie expenditure calculator.

If you have selected activity level when calculating BMR than the above tool will calculate your approximate daily calorie expenditure. If you exceed that number (caloric surplus) you will start to gain weight as your body will gain extra fat. If you do not exceed that number (caloric deficit) you will maintain or lose weight (if caloric deficit is high).

Read more about gaining and losing weight in this article: How many calories should I eat per day to lose weight?

The results provided by our BMR calculator are not 100% accurate as BMR calculator does not take into account the following factors:

  • density of your bones,
  • your muscle mass,
  • your body fat percentage,
  • the amount of water that is present in your body at the moment of calculation.

The accuracy of this calculation is still fairly accurate for non-obese and non-athlete persons.

How to use BMR calculator?

In order to calculate your Basal Metabolic Rate (BMR), please input your physical characteristics. You can use metric (kilograms, centimeters) or imperial (lbs, inches) BMR calculator. When entering values, do not add “cm” “kg” “lbs” or “ft” to your number, but only input plain numbers. Select your gender (man / woman) and select your activity level. By selecting activity level your calculated value will be moderately higher. This is normal.

Additional reading:
What is BMR?
How to boost metabolism?
How many calories should you consume per day?
Chewing food more can help you lose weight!

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