BMR Calculator
Your BMR is the number of calories your body burns just to stay alive at rest. It's the starting point for any calorie or weight plan.
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What is the BMR Calculator?
Basal Metabolic Rate (BMR) is the energy your body uses at complete rest to maintain vital functions like breathing, circulation and cell repair. It typically accounts for 60–70% of your total daily calorie burn.
How to Calculate
The Mifflin-St Jeor equation is the modern standard: for men, BMR = 10×weight + 6.25×height − 5×age + 5; for women, the last term is − 161. This calculator also shows the older Harris-Benedict figure.
Formula
BMR (men) = 10×weight(kg) + 6.25×height(cm) − 5×age + 5
How to Use
- Enter your details in the fields above.
- The result updates instantly as you type.
- Use Copy, Print or Download PDF to save your result.
Frequently Asked Questions
BMR vs TDEE u2014 what's the difference?
BMR is calories burned at rest; TDEE (Total Daily Energy Expenditure) is BMR multiplied by an activity factor to include daily movement and exercise.
Which formula is more accurate?
Mifflin-St Jeor is generally considered more accurate for modern populations, which is why it's the default here.
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