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TDEE Calculator

Estimate daily energy expenditure from BMR, activity level and optional goal adjustment.

Activity multipliers are rough population estimates. Track weight trend and intake for a few weeks before treating any TDEE estimate as personal.

How the estimate is calculated

TDEE is estimated as BMR multiplied by an activity factor plus a user-entered exercise adjustment. Goal intake adds or subtracts the selected daily adjustment.

Example

If BMR is 1,650 kcal/day and the activity factor is 1.55, estimated maintenance is about 2,558 kcal/day before any extra exercise or goal adjustment.

Common mistakes

Activity multipliers are easy to overestimate. Compare the estimate with actual intake and body-weight trend before making large changes.

How to use the number

Use TDEE as a starting point, then compare it with real intake and weight trend over time. This is not nutrition or medical advice. Energy needs vary with body composition, adaptive metabolism, medications, illness, pregnancy, age and training status.

References

Last reviewed: 2026-05-17

Before relying on this result

Use this calculator together with the formula, assumptions, limitations and examples on the page. If the topic involves health, tax, lending, investment, legal, safety or current-rate decisions, treat the number as an estimate and check the relevant primary source or professional guidance.

Calculator metadata last reviewed: 2026-05-14.