BMR Calculator
Calories your body burns at complete rest.
Your result
BMR is the energy needed for breathing, circulation and cell repair. Mifflin-St Jeor is generally the more accurate of the two.
Medical disclaimer: This tool is for education and is not medical advice. Read more.
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Learn more
Understanding BMR and Your Metabolism
Basal metabolic rate is the energy you burn at rest. Learn what raises and lowers it.
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Work out a deficit that is effective without being extreme.
Weight & Body CompositionWhy Weight Loss Plateaus and What to Do
Stalls are normal. Understand why they happen and how to restart progress.
Frequently asked questions
What does the BMR Calculator do?
Calories your body burns at complete rest. Enter your values and the result and chart update instantly.
How accurate is it?
It uses published, widely used formulas. Results are estimates for education and planning, not a diagnosis. Talk to a qualified clinician about decisions affecting your health.
Is my information stored or shared?
No. All calculations run in your browser and nothing you type is sent to a server or saved.
What can I search to find this tool?
People find it by searching for: how many calories do i burn at rest; basal metabolic rate; metabolism rate.