BMR & TDEE Calculator
Calculate your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE) using the Harris-Benedict equation. Enter your gender, age, height, weight, and activity level.
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What is Basal Metabolic Rate?
Your Basal Metabolic Rate (BMR) is the number of calories your body needs to perform basic life-sustaining functions. It represents the largest component of your total daily energy expenditure, typically accounting for 60-75% of all calories burned.
Activity Multipliers
- Sedentary (1.2): Little or no exercise
- Lightly active (1.375): Light exercise 1-3 days/week
- Moderately active (1.55): Moderate exercise 3-5 days/week
- Very active (1.725): Hard exercise 6-7 days/week
- Extra active (1.9): Very hard exercise or physical job