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BMR Calculator

Calculate your Basal Metabolic Rate (BMR).

yrs
cm
kg

How to Calculate

Basal Metabolic Rate (BMR) is the minimum amount of energy required to sustain life functions at rest. Uses the Mifflin-St Jeor formula: • Male: BMR = 10 × weight(kg) + 6.25 × height(cm) − 5 × age + 5 • Female: BMR = 10 × weight(kg) + 6.25 × height(cm) − 5 × age − 161 This formula is currently considered the most accurate BMR estimation formula.

Example

Male, 30 years old, 175 cm, 70 kg: BMR = 10 × 70 + 6.25 × 175 − 5 × 30 + 5 = 700 + 1093.75 − 150 + 5 = 1648.75 kcal/day

FAQ

Is a higher BMR better?
A higher BMR means you burn more calories even at rest. In general, more muscle mass leads to a higher BMR, which is advantageous for weight management.
Is BMR the same as daily calorie expenditure?
No. BMR is the energy burned at complete rest. Your Total Daily Energy Expenditure (TDEE) includes physical activity and is higher than BMR.
Does BMR decrease with age?
Yes, as you age, muscle mass decreases and BMR naturally declines. Regular exercise to maintain muscle mass is important.