Summary
Estimated total daily energy from BMR and a selected activity multiplier.
Calculation details
This reuses the BMR equation and multiplies it by a broad activity category. Real activity and energy needs vary day to day.
Formula
TDEE = Mifflin–St Jeor BMR × activity multiplier (1.2, 1.375, 1.55, 1.725, or 1.9).
Worked example
TDEE worked example
The result shows both estimated BMR and TDEE.
How it works
Enter the same BMR inputs plus a broad activity multiplier. Pick the category that best matches usual weekly activity, not a single hard workout day.
Frequently asked questions
Is this a medical diagnosis?
No. It is an educational estimate and cannot diagnose a condition or replace individualized professional advice.
Why can my actual result differ?
Daily activity, NEAT, and the coarse multiplier categories rarely match a lab measurement.
When is this calculator most useful?
Use it when you need a maintenance estimate from BMR plus a broad activity band.
How are results rounded?
The calculation retains full precision; centralized display formatting rounds only the visible result.