Estimate your total daily energy expenditure (TDEE) with the Mifflin-St Jeor equation and an activity factor. An estimate, not a personal target.
| BMR | — |
| TDEE (Maintenance) | — |
| Illustrative: maintenance −250 kcal | — |
| Illustrative: maintenance −500 kcal | — |
| Illustrative: maintenance +500 kcal | — |
BMR is the estimated energy use at rest, here from the Mifflin-St Jeor equation (Mifflin et al., Am J Clin Nutr 1990). TDEE multiplies BMR by an activity factor (1.2 to 1.9). These factors are conventional rough multipliers (the same set is listed in the Medscape Mifflin-St Jeor calculator), not measured for you, and the equation was developed in adults in a Western population, so individual needs can differ by several hundred kcal. The three offset rows only show arithmetic (maintenance minus or plus a fixed amount). They are not a prediction of weight change or a recommended intake. For a diet plan, talk to a doctor or dietitian.
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