How it works
Mifflin–St Jeor estimates resting energy expenditure, multiplied by an assumed activity factor.
Worked calculation
Estimate daily maintenance calories using measured height, weight and activity. For the sample inputs, the calculator displays these results:
| Estimated BMR | 1,698.75 kcal/day |
|---|---|
| Estimated maintenance calories | 2,378.25 kcal/day |
Assumptions and limitations
Population estimates are not individualized medical or nutrition advice; sex coefficient is a model assumption.
Results update as you change inputs. The values are calculated from the displayed inputs and assumptions, not obtained from an external measurement. Check units, rounding, and any special rules that apply to your situation.
Further reading and source context
For background and independently maintained guidance, see NIH Body Weight Planner. This source supplies context rather than personalized verification of the calculator output.
Daily energy needs are estimates
Calorie calculations approximate average energy use under stated activity assumptions. They do not measure your actual metabolism or predict individual weight changes precisely.
What to change in your scenario
Compare sedentary and active assumptions to understand sensitivity. Do not treat a single calculated target as a medical prescription.