What is the difference between BMR and TDEE?

BMR (Basal Metabolic Rate) is the calories your body burns at complete rest to keep vital functions running. TDEE (Total Daily Energy Expenditure) multiplies your BMR by an activity factor to estimate the calories you actually burn each day, including movement and exercise.

How are weight loss and gain calories calculated?

We apply a common 500-calorie daily adjustment to your TDEE. Eating about 500 calories below maintenance supports roughly 0.5 kg of weight loss per week, while 500 above supports gradual gain. These are estimates, so adjust based on your real-world results.

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Calorie Calculator

Estimate daily calories (BMR & TDEE).

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How to use the Calorie Calculator

1Select your gender and enter age, weight (kg), and height (cm).
2Choose your activity level from sedentary to very active.
3View your BMR, maintenance, weight-loss, and weight-gain calorie targets.

About the Calorie Calculator

Free calorie calculator using the Mifflin-St Jeor equation. Find your BMR, daily maintenance calories (TDEE), and targets for weight loss or gain.

Part of our Calculators collection. Browse all tools.

Frequently asked questions

What is the difference between BMR and TDEE?: BMR (Basal Metabolic Rate) is the calories your body burns at complete rest to keep vital functions running. TDEE (Total Daily Energy Expenditure) multiplies your BMR by an activity factor to estimate the calories you actually burn each day, including movement and exercise.
How are weight loss and gain calories calculated?: We apply a common 500-calorie daily adjustment to your TDEE. Eating about 500 calories below maintenance supports roughly 0.5 kg of weight loss per week, while 500 above supports gradual gain. These are estimates, so adjust based on your real-world results.