What is TDEE Calculator?
Total daily energy expenditure is everything you burn in 24 hours: your basal metabolism, the energy of daily movement, deliberate exercise, and the small cost of digesting food. It is the single most useful calorie number, because eating at TDEE maintains weight, below it loses and above it gains. This calculator builds TDEE from your BMR and an activity multiplier. Choosing the right multiplier is the part people get wrong most often — most desk workers overestimate their activity, which is why the calculated maintenance looks higher than reality. If your weight is stable, your true TDEE is simply the calories you currently eat, so you can cross-check the estimate against experience.
Common Uses for TDEE Calculator
- Find the calorie level that keeps your weight stable
- Use TDEE as the base for cutting or bulking
- See how much activity changes your daily burn
- Cross-check a stalled diet against real intake
The four parts of TDEE
Basal metabolic rate (60–70%), the thermic effect of food (about 10%), non-exercise activity thermogenesis (daily movement, highly variable) and exercise. The last two are where most of the day-to-day variation lives, which is why step count tracks TDEE better than workout hours alone.
Why the scale is the best TDEE tool
If you eat 2,400 kcal a day and your weight is flat over three weeks, your TDEE is 2,400 — regardless of what any formula says. Use the calculator to get close, then let real data correct it.
TDEE in practice
Cut at 15–20% below TDEE for fat loss, bulk at 10–15% above for muscle gain. Large swings create faster scale movement but worse body composition and adherence.