Your Basal Metabolic Rate (BMR)
1,656
| Mifflin-St Jeor Formula: | 1,656 kcal |
| Revised Harris-Benedict: | 1,712 kcal |
| Sedentary TDEE (BMR × 1.2): | 1,987 kcal |
| Mifflin-St Jeor Formula: | 1,656 kcal |
| Revised Harris-Benedict: | 1,712 kcal |
| Sedentary TDEE (BMR × 1.2): | 1,987 kcal |
Basal Metabolic Rate (BMR) represents the total volume of daily caloric energy required by an individual's body to sustain essential life functions—including cellular respiration, blood circulation, temperature regulation, and brain function—while at absolute physical and digestive rest in a temperate environment.
Our BMR Calculator evaluates your physiological profile using the two most widely accepted clinical energy allocation equations:
Widely recommended by clinical dietitians and health organizations as the standard for estimating basal energy needs:
An updated calculation model based on the original 1919 study, refined by Roza and Shizgal for modern body compositions:
Your BMR acts as the biological floor for daily caloric consumption. To maintain current body weight, you must account for daily physical movement by multiplying your BMR by an activity factor (e.g., 1.2 for sedentary lifestyle up to 1.9 for intense athletic training).
BMR is the baseline amount of energy (in calories) your body needs every 24 hours to stay alive while in a completely rested state.
BMR calculates calories burned strictly at rest, while TDEE (Total Daily Energy Expenditure) accounts for both your baseline BMR plus extra calories burned through daily physical activity and exercise.
The Mifflin-St Jeor equation is considered by modern clinical guidelines to be the most reliable and accurate formula for estimating BMR in healthy adults.