Health & Fitness
BMR Calculator
Your BMR is the energy your body needs just to stay alive at rest. Use it as the starting point for a calorie target.
For information only. Results are estimates and are not medical advice. Please talk to a doctor or qualified professional about your own health.
About the BMR Calculator
We use the Mifflin-St Jeor equation, which is considered one of the most reliable for the general population, and show the revised Harris-Benedict equation for comparison.
BMR is not the number of calories you should eat. Multiply it by an activity factor (see the Calorie Calculator) to estimate your daily needs.
Frequently asked questions
What is the difference between BMR and TDEE?
BMR is the energy used at complete rest. TDEE (total daily energy expenditure) adds movement, exercise and digestion on top of BMR.
Can I eat below my BMR to lose weight?
Eating far below BMR for long periods is not recommended and can cause nutrient deficiency, muscle loss and fatigue. Speak to a doctor or dietitian first.