Daily energy expenditure
Fitness & body
Daily energy expenditure
How many calories might I need to maintain my weight?
Example values are filled in. Replace them with your own.
Example calculation
Estimated daily calories to maintain weight: 2,638 kcal/day.
Estimated daily calories to maintain weight
2,638 kcal/day
Estimated resting energy per day
1,649 kcal/day
This uses a representative factor for your routine. Actual needs vary; it does not guarantee stable weight. Not for pregnancy or breastfeeding.
Body-related results are formula-based estimates, not a diagnosis or a personalized prescription.
See formula and assumptions
Mifflin–St Jeor resting estimate × activity factor. The options use 1.4, 1.6, 1.85 and 2.2: representative values within NIH/FAO activity ranges, not a reproduction of their models.
- Weight (kg)
- Enter your weight in light clothing. Decimals such as 65.5 are accepted.
- Height (cm)
- Use your height without shoes. For 1 m 75 cm, enter 175.
- Age in years
- Enter your age at your most recent birthday.
- Sex used in the formula
- Choose the male or female coefficient used by this estimate. It is not a measurement.
- What is a typical day like?
- Include work and travel as well as exercise. Choose the closest description.
- Your activity factor
- Use this only if you already have a factor. It multiplies resting energy; 1.6 means 1.6 times that amount.