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:
Press to calculate:
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!

Also make sure you try out our other useful tools.

Other tools you might find useful:

BMI calculator A useful tool to calculate your body mass index.
BMR calculator Calculate your Basal Metabolic Rate.
Weight loss calculator Calculate your own personal weight loss diet.
Heart rate calculator Calculate your maximum heart rate.
Heart rate zones calculator Calculate heart rate zones so you can train better.
Body fat percentage calculator See what your body fat percentage is.
Blood sugar converter Convert blood sugar from mmol/l to mg/dl or vice versa
Blood pressure calculator Check whether your blood pressure level is low, normal or high.
Calories burned from exercise calculator Calculate the amount of calories you burn performing different exercises.
Blood pressure chart and calculator See blood pressure chart and compare your results.

Keywords: bmr calculator, calculate bmr, basal metabolic rate calculator, men and women bmr calculator

12 Comments on this article. Feel free to join this conversation.

  1. ankur February 9, 2016 at 9:16 pm - Reply

    is this bmr calculator accurate? thanks.

  2. jodi June 11, 2015 at 7:35 pm - Reply

    I’ve been using this BMR Calculator before i used the US Metric & it works fine but now when i press calculate it says Nan…why & what does it mean? Pls answer..Thank you in advance

    • June 11, 2015 at 10:02 pm - Reply

      Hello. When you are entering your height in ft ins format please input the number in following format: 5.6 (use decimal mark). Hope this solves your issue.

  3. trina May 7, 2015 at 5:41 am - Reply

    mine just kept saying NaN idk what that means

    • May 7, 2015 at 6:21 am - Reply

      Hello. Have you selected US/EU units? What parameters are you inputting?

  4. mrMoon November 17, 2014 at 11:12 pm - Reply

    How can I boost my basal metabolic rate?

  5. Andrew R June 16, 2014 at 10:25 pm - Reply

    Hello. How do I make use of this bmr calculator? My numbers seems way off. I am 45 year old male, my height is 180 cm and my weight is 85 kg.
    Thank you for reply. A

  6. tina June 10, 2014 at 10:40 am - Reply

    Hello. Are these results accurate? My bmr is calculated to be 1652 calories which seems a bit too little for me?
    Thank you.

    • Healthiack June 10, 2014 at 10:44 am - Reply

      Hello. This is most probably your base BMR. BMR calculator calculates BMR using your body characteristics. You need to select activity level as well to get a better estimation of your daily caloric needs.

  7. Healthiack November 2, 2013 at 2:27 pm - Reply

    You need to input your gender, age, height and weight and press “calculate”.

  8. chinonso November 2, 2013 at 1:28 pm - Reply

    Calculate my BMR

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