BMR Calculator - Calculate Basal Metabolic Rate Online Free

How to Use the BMR Calculator

1. Enter your details — weight, height, age, gender
2. Get your BMR — calories burned at rest
3. See maintenance calories — based on activity level

Your BMR is the number of calories your body burns at complete rest. Use this to plan your diet and fitness goals. All data stays in your browser.

Features

• Mifflin-St Jeor equation — most accurate BMR formula
• Activity levels — from sedentary to very active
• Maintenance calories — BMR × activity multiplier
• Dual units — imperial and metric
• Weight management — bulk/cut calorie targets