BMR Calculator
Calculate your basal metabolic rate.
About this tool
Estimate your Basal Metabolic Rate (BMR) — the calories your body burns at rest — using the Mifflin-St Jeor equation, plus your daily calorie needs (TDEE) based on activity level.
Key Features
- Mifflin-St Jeor formula
- Metric & imperial units
- BMR + daily calorie needs (TDEE)
- Activity-level multiplier
How to Use
- Choose units and gender.
- Enter age, weight and height.
- Pick your activity level.
- Click Calculate.
Benefits
- Plan your diet
- Set calorie targets
- Understand your metabolism
Frequently Asked Questions
Basal Metabolic Rate is the number of calories your body needs to perform basic life-sustaining functions at complete rest.
Total Daily Energy Expenditure — your BMR multiplied by an activity factor, estimating total calories burned per day.