BMR Calculator

Calculate your Basal Metabolic Rate (BMR) to determine how many calories your body burns at rest. Enter Unit System, Gender, Age (years) and Weight to get BMR. Free, no s

Parameters

Enter the required details below

Ready to Calculate

Enter your parameters and click calculate to see the results here.

How to Use

Choose Unit System.
Choose Gender.
Enter Age (years).
Click Calculate to see BMR.
Check the result. Use Reset if you want to try different numbers.

About This Calculator

Calculate your Basal Metabolic Rate (BMR) to determine how many calories your body burns at rest. This tool is in the Health & Fitness collection on Qalculators. Enter Unit System, Gender, Age (years) and Weight to calculate BMR. Results stay in your browser unless you copy them.

Frequently asked questions

What does BMR Calculator calculate?+

Calculate your Basal Metabolic Rate (BMR) to determine how many calories your body burns at rest. You enter Unit System, Gender, Age (years) and Weight and receive BMR.

What information do I need for BMR Calculator?+

You need Unit System, Gender, Age (years) and Weight. Optional fields can stay at their defaults.

Is BMR Calculator free to use?+

Yes. BMR Calculator is free and does not require an account. The calculation runs in your browser.

Guides for this calculator

BMR, TDEE, and a calorie deficit you can actually follow

Weight change is mostly energy in versus energy out. BMR and TDEE turn that idea into a daily calorie range without treating the result as a medical diagnosis.