About this Calculator
Every activity, from pumping blood to running a marathon, requires energy. We supply this energy to our bodies through food, measured in calories. If we consume exactly the amount of energy we expend, our weight remains stable.
Formula & Calculations
Mathematical Formula
BMR = 10 * weight (kg) + 6.25 * height (cm) - 5 * age + 5 (Men)
BMR is multiplied by activity multipliers (1.2 – 1.9) to compute TDEE.
How to Calculate Step-by-Step
1
Compute BMR
Determine baseline resting rate.
2
Select Multiplier
Match daily activity score.
3
Solve TDEE
Multiply BMR by activity factor.
How to Use & Best Practices
Input your biological details, select your typical physical activity multiplier, and calculate targets.
Frequently Asked Questions
What is a safe calorie deficit?
A deficit of 500 calories per day is standard for steady, healthy weight loss.
Should I eat less than my BMR?
No, RMR/BMR represents vital organ support lines.