About TDEETools
TDEETools is a free calculator site for estimating maintenance calories, BMR, macros, calorie deficits, and weight-change targets.
Why this site exists
People search for TDEE because they want a usable calorie number, not a lecture. Our goal is to make that first number easier to calculate, understand, and adjust.
How the calculator works
When body fat percentage is not supplied, TDEETools estimates BMR with the Mifflin-St Jeor equation. When body fat is supplied, it can use a lean-body-mass based estimate. Activity multipliers convert resting needs into estimated total daily energy expenditure.
Limits
The site provides educational estimates only and does not provide medical advice, diagnosis, or treatment.
Useful tool sites
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