What is BMR?
BMR (Basal Metabolic Rate) is the number of calories your body burns at rest to maintain vital functions like breathing, circulation, and cell production. It represents the minimum energy needed to keep your body functioning.
BMR Calculator
Calculate your Basal Metabolic Rate to find out how many calories your body burns at rest.
This calculator provides formula-based estimates for educational purposes only. Results should not replace professional medical advice, diagnosis, or treatment. If symptoms, medications, pregnancy, eating behavior concerns, injury, or chronic health conditions are involved, use the result carefully and consult a qualified healthcare professional. See the Body Tally disclaimer and how the calculators work page for more detail.
How to use this calculator
- Enter the requested measurements or values.
- Choose the unit system or options that match your situation.
- Review the result and interpretation.
- Use the number as an educational estimate, not a diagnosis or prescription.
Example
Use the calculator to estimate a health or fitness number, then compare it with trends over time and other relevant context.
These tools are for education and planning. They do not replace medical advice.
Frequently Asked Questions
How is BMR calculated?
This calculator uses the Mifflin-St Jeor equation, which is considered one of the most accurate BMR formulas. It takes into account your sex, age, height, and weight to estimate your resting metabolic rate.
What is the difference between BMR and TDEE?
BMR is your resting metabolic rate, while TDEE (Total Daily Energy Expenditure) includes calories burned through daily activities and exercise. TDEE = BMR × activity level multiplier.
How can I use my BMR for weight management?
Your BMR helps you understand your baseline calorie needs. To lose weight, consume fewer calories than your TDEE. To gain weight, consume more. Always aim for gradual, sustainable changes and consult a healthcare provider.