BMR Calculator

BMR Calculator - calculate bmr (calories/day), maintenance calories (tdee), calories per hour at rest instantly with formulas, worked steps and explanations.

This calculator provides general information for educational purposes only. It is not medical advice, diagnosis or treatment. Always consult a qualified healthcare professional about your personal health.

BMR Calculator inputs
BMR (calories/day) 1,617.50
Maintenance Calories (TDEE)
2,507.13
Calories per Hour at Rest
67.40
Lean Body Mass
56

BMR sub male = 10w + 6.25h - 5a + 5
w
Weight in kg
h
Height in cm
a
Age in years

With weight 70 mass, height 170 length_body, age 30 years, gender male, the bmr (calories/day) works out to 1617.5.

How is BMR calculated?

BMR Calculator uses the formula BMR_male = 10w + 6.25h - 5a + 5. Enter your own figures above and the result updates instantly in your browser.

What information do I need to use this calculator?

You need weight, height, age and gender. Every field starts with a realistic default so you can see how the calculation behaves before entering your own numbers.

What do the results show?

The headline figure is bmr (calories/day). Alongside it you also get maintenance calories (tdee), calories per hour at rest, lean body mass, so you can see the full picture rather than a single number.