Planning tool
Calorie Calculator
Estimate daily calorie needs from age, body measurements, sex, and activity.
Runs in your browserResult
- Estimated BMR
- 1,751 kcal/day
- Maintenance calories
- 2,714 kcal/day
- Gentle loss estimate
- 2,414 kcal/day
- Gentle gain estimate
- 3,014 kcal/day
This is a rough Mifflin-St Jeor estimate, not medical advice. Needs vary with health, body composition, medication, pregnancy, training, and other factors.
How to use this calorie calculator
- Enter your age, height, weight, sex factor, and activity level to estimate daily calorie needs.
- Review the calculated totals, units, and assumptions. Check the inputs and units before relying on the result.
- Change one input at a time to compare another case, then copy or save the result you plan to use.
About this calorie calculator
Use the Calorie Calculator to estimate daily calorie needs from age, body measurements, sex, and activity. The result changes when you adjust the values or options above.
You can also use it to compare results after changing one input.
Example
Enter age, weight, height, sex factor, and activity level to compare estimated maintenance calories with modest loss or gain targets.
Common uses
- → estimate daily calorie needs from age, body measurements, sex, and activity
- → compare results after changing one input
- → save an estimate for planning or comparison