BMR Calculator
Estimate basal metabolic rate with Mifflin-St Jeor, Harris-Benedict, and optional body-fat based equations, using US or metric inputs.
Basal metabolic rate estimate
BMR is an estimate of energy expenditure at rest. English search results usually expect age, sex, height, weight, unit choice and at least Mifflin-St Jeor as the primary equation.
Mifflin-St Jeor equation with weight in kilograms, height in centimeters and age in years.
BMR versus TDEE
Common maintenance-calorie bridge.
Use BMR to understand the resting component. Use TDEE when you need maintenance calories or a starting point for weight-change planning.
Frequently Asked Questions
Sources and References
- A new predictive equation for resting energy expenditure in healthy individualsPubMed
- The Harris Benedict equation reevaluatedPubMed
- Basal Metabolic RateNCBI Bookshelf
- Body Weight PlannerNIDDK, NIH
Calculations are based on the listed reference sources. Links open in a new tab.
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