Calorie guides. Clearer decisions.
From a first estimate to a longer trend: understand the assumptions behind your calories, then choose a useful next step.
What Is TDEE? Meaning, Formula & Calculation
TDEE means total daily energy expenditure: the energy your body uses over a whole day. It is a maintenance estimate, not a weight-loss target.
Read guide →02 / GUIDEBMR vs TDEE: Which Number Should You Use?
BMR describes energy under tightly controlled resting conditions. TDEE describes a whole day. Use the daily estimate as the starting point for maintenance planning.
Read guide →03 / GUIDETDEE Activity Levels: Choose Your Activity Factor
Choose activity from your usual week, including work and everyday movement. A workout count or step total on its own cannot determine your calorie needs.
Read guide →04 / GUIDEHow Accurate Are TDEE Calculators? Check Your Estimate
A TDEE calculator predicts a starting point. There is no single equation that is most accurate for every person, and a precise-looking result is not a confidence interval.
Read guide →05 / GUIDEWhich TDEE Formula? Mifflin, Harris, Katch & Cunningham
TDEE calculators usually choose a resting-energy equation first, then apply an activity factor. The useful choice depends partly on which inputs you can supply reliably.
Read guide →Choose from the inputs you know
Mifflin–St Jeor CalculatorKatch–McArdle CalculatorUse Mifflin without body-fat data, or inspect Katch with a measurement. Extra inputs do not guarantee accuracy.