Burnie Academy

Estimating your burn — BMR, activity, and the honest middle

Your daily burn is not one exact number. The BMR formula is a population average, and activity guesses are loose. Burnie uses your BMR plus your phone's active calories, and you tune the rest by watching your weight trend.

15 Jul 2026 · Burnie Academy
bmr tdee estimation numbers

You want to know how many calories you burn in a day. So you open a calculator. You type your weight and height. You pick 'moderately active.' You get a clean number like 2,200. It looks exact. It is not. That number is a rough guess. Here is how to think about it honestly. Burnie helps you land in the middle.

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