Calculate Your Basal Metabolic Rate in Seconds

Know how many calories your body burns at rest. Use our BMR Calculator to understand your metabolism and take control of your energy balance.

BMR Calculator

Calculate your Basal Metabolic Rate (BMR) using the Mifflin–St Jeor equation, and estimate maintenance calories (TDEE) based on your activity level.

Gender

Age

Weight Unit

Weight (lb)

Height Unit

Feet (ft)

Inches (in)

Activity

BMR (Mifflin–St Jeor)

—

TDEE (Maintenance)

—

Activity Factor

—

Suggested Daily Calories

Maintain (0%)—

Cut (−10%)—

Cut (−20%)—

Bulk (+10%)—

Bulk (+20%)—

BMR = 10×kg + 6.25×cm − 5×age + 5. TDEE = BMR × activity factor. Calorie targets are estimates and should be adjusted based on progress and how you feel.

Explore Our Tools

Discover powerful calculators to help you track, manage, and optimize your health journey. All free and AI-powered.

📏