How to use this calorie needs calculator
Enter the requested values above and select Calculate. The result updates immediately on the page, so you can change one value and compare different scenarios without leaving the calculator.
Formula and method
Example
This is a general estimate; actual energy needs vary with health, training, body composition and other factors.
What this calculator is useful for
Estimate daily calorie needs by multiplying estimated BMR by an activity factor. It is designed for quick estimates and everyday problem solving. When a calculation affects a contract, tax filing, medical decision or other high-stakes situation, verify the result with the appropriate professional or authoritative source.
Frequently asked questions
What does the Calorie Needs Calculator calculate?
Estimate daily calorie needs by multiplying estimated BMR by an activity factor.
How does the calculation work?
Estimated daily calories = Mifflin–St Jeor BMR × selected activity factor.
Is this calculator free?
Yes. ERICH Calculators is free to use and no account is required.