Core Tool
TDEE Calculator
Exactly how many calories you burn in a day — the number every diet should start from.
BMR (resting burn)1670 kcal/day
TDEE (maintenance)2589 kcal/dayEat this to stay the same weight
Fat loss (mild)2089 kcal/day≈0.5 kg/week for most people
Muscle gain (lean bulk)2889 kcal/daySmall surplus, less fat gain
Formula: Mifflin-St Jeor for BMR, multiplied by your activity factor. Treat the result as a starting estimate (±10% is normal) — track your weight for 2–3 weeks at this intake and adjust by 100–200 kcal based on what the scale actually does.
General information for healthy adults — not medical advice. If you have a medical condition, are on medication, or anything feels off, talk to a doctor before acting on numbers from any calculator.