About Calorie Calculator
Estimate daily calorie requirements for weight loss, maintenance, or muscle gain.. Designed for accurate, instantaneous calculations with zero wait time.
Formula
BMR (Mifflin) × Activity Level ± Goal Target Deficit/Surplus
Example Calculation
For a 2,200 maintenance calorie level, cutting 500 kcal/day yields ~0.5kg loss/week.
How to Use
- Enter your values into the form fields above.
- The calculation updates immediately in real time.
- Inspect the main summary and secondary breakdowns below.