Everyday & Health
Daily Calorie Needs
Maintenance calories from BMR and activity factor.
Formula
Formula
kcal = BMR · activity
Variables
| Symbol | Definition | Type & range | Units | Role |
|---|---|---|---|---|
| BMR | basal metabolic rate | BMR > 0 | kcal | input |
| activity | activity multiplier | 1.2 (sedentary) – 1.9 (athlete) | — | result |
| kcal | maintenance calories | > 0 | kcal/day | result |
Try it yourself
Interactive calculator
Worked examples
Example 1
GivenBMR (kcal) = 1650, activity factor = 1.55
Result2557.5
Example 2
GivenBMR (kcal) = 1400, activity factor = 1.2
Result1680