Know Your Numbers
TDEE Calculator.
Your BMI, BMR, and total daily energy expenditure — so you know exactly how much to eat to lose fat, maintain, or build muscle. Free, instant, no email.
What the numbers mean
Three numbers. Total clarity.
BMI — Body Mass Index
Your weight relative to your height. A quick health screen — not perfect for muscular people, but a useful starting point for most.
BMR — Basal Metabolic Rate
The calories your body burns at complete rest just staying alive — breathing, circulation, brain function. Calculated with the Mifflin-St Jeor equation.
TDEE — Total Daily Energy Expenditure
Your BMR times your activity level: what you actually burn in a day. Eat under it to lose fat, at it to maintain, over it to build.
Now put it to work
Track every calorie against your number.
MacroMeter takes your TDEE and tracks everything you eat against it — barcode scans, saved meals, one-tap daily logging.