Calorie Calculator

Estimate BMR, maintenance calories, and common calorie targets for loss or gain. Free online calculator with formulas and step-by-step solutions.

Key formula

BMR and maintenance calorie equations

About this tool

Estimate BMR, maintenance calories, and common calorie targets for loss or gain. Free online calculator with formulas and step-by-step solutions.

How to use this calculator

1. Enter realistic personal values and double-check the chosen unit system before calculating.
2. Use the result as a planning estimate, not as a diagnosis or guaranteed outcome.
3. Compare the output with your goal, context, and any relevant professional guidance.
4. Review the steps to understand how the estimate was produced from your inputs.