BMR & TDEE Calculator
With BMR & TDEE Calculator Precisely calculate your daily calorie needs for maintenance, weight loss, or bulking.
Your Details
Your Caloric Needs
Mifflin-St Jeor (Recommended)
Harris-Benedict Equation
*These calculations are estimates. Adjust your intake based on weekly weight trends.
Optimize Your Nutrition with Data
The WebLoop tool calculates Basal Metabolic Rate and Total Daily Energy Expenditure to assist with weight management. Using the Mifflin-St Jeor, Harris-Benedict, and Katch-McArdle formulas, it estimates daily caloric needs for fat loss, maintenance, or muscle gain.
The BMR & TDEE Calculator is essential for anyone looking to lose fat, build muscle, or maintain a healthy weight . By calculating your Basal Metabolic Rate (BMR), you learn how many calories your body burns just to exist. Your Total Daily Energy Expenditure (TDEE) then factors in your activity level to tell you how many calories you burn in a typical day.
Equation Breakdown
This calculator provides results using three distinct, scientifically validated formulas:
- Mifflin-St Jeor: Considered the most accurate for modern populations.
- Harris-Benedict: One of the oldest formulas, revised in 1984, still widely used.
- Katch-McArdle: The most precise if you know your body fat percentage, as it accounts for lean muscle mass.