Formula
This calculator uses the standard bmr calculator formula:
Frequently Asked Questions
Basal Metabolic Rate (BMR) is the number of calories your body needs to maintain basic life-sustaining functions (breathing, circulation, cell production) at complete rest.
The Mifflin-St Jeor equation (1990) is widely considered more accurate for most people than the original Harris-Benedict equation (1919). The revised Harris-Benedict (1984) is also reliable.
BMR is calories at complete rest. TDEE (Total Daily Energy Expenditure) multiplies BMR by an activity factor to estimate actual daily calorie needs.
Yes. BMR typically decreases by about 2% per decade after age 20, primarily due to loss of muscle mass (sarcopenia). Strength training can help maintain BMR.
Building muscle mass through resistance training is the most effective way to increase BMR, as muscle tissue burns more calories at rest than fat tissue.
Yes. Higher body weight generally means higher BMR because larger bodies require more energy for basic functions. Lean body mass has a stronger correlation with BMR than total weight.