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Total daily energy expenditure: your full-day calorie burn including activity.
Total daily energy expenditure: your full-day calorie burn including activity.
Enter values above and click Calculate — results will appear here with the formula explained.
Total daily energy expenditure stacks three layers: resting metabolism (BMR, ~60–75%), activity and exercise (~15–30%), plus diet-induced thermogenesis — the digestion cost, roughly 10% of intake, higher for protein (~20–30% of its calories) than fat (~0–3%). Because precise measurement is impractical, the classic approach multiplies BMR by standardized activity multipliers ranging from sedentary 1.2 to athlete-level 1.9.
The multipliers are blunt instruments — two 'moderately active' people can differ substantially. The honest calibration protocol: pick the lower of two candidate levels, eat at the computed maintenance for 2–3 weeks while weighing daily under consistent conditions, then compare the trend. Gaining means true TDEE sits below the estimate; losing means above. One calibration cycle beats any formula refinement.
NEAT (non-exercise activity thermogenesis) is the hidden variable that breaks most estimates: fidgeting, walking, standing, chores and occupational movement vary by 300–800+ kcal/day between otherwise similar people. Two desk workers with identical gym routines can differ by 500 kcal in TDEE purely through steps and posture. When estimates and reality diverge, NEAT — not a 'broken metabolism' — is usually the gap; a cheap step counter diagnoses it in a week.
Exercise calories deserve skepticism in both directions. Trackers and machines overestimate burn 20–50%, and the body compensates for big sessions by moving less afterward (constrained energy expenditure). The practical rule: log training for performance, fuel it adequately, but don't 'eat back' more than half the stated burn — and judge by the scale trend, never the watch face.
TDEE is a moving target that must be rechecked: every ~5 kg of weight change, every training-phase change, every job or season change in daily movement. Maintenance at 90 kg is not maintenance at 80 kg — the ~100–150 kcal drift explains most 'mysterious' plateaus. Set a quarterly recalculation habit alongside the BMR refresh.
Use maintenance as the baseline for everything else: subtract 300–600 for sustainable loss, add 200–300 for lean gain, hold steady for recomposition with high protein and progressive training. All three strategies in the calorie calculator start from this number — its accuracy is the foundation every goal stands on.
Total daily energy expenditure: your full-day calorie burn including activity. Formula: TDEE = BMR × activity multiplier (1.2 sedentary → 1.9 extremely active). Example: A 28-year-old female at 68 kg, 172 cm, lightly active: BMR ≈ 1,478 → TDEE ≈ 2,032 kcal/day.
Total daily energy expenditure stacks three layers: resting metabolism (BMR, ~60–75%), activity and exercise (~15–30%), plus diet-induced thermogenesis — the digestion cost, roughly 10% of intake, higher for protein (~20–30% of its calories) than fat (~0–3%). Because precise measurement is impractical, the classic approach multiplies BMR by standardized activity multipliers ranging from sedentary 1.2 to athlete-level 1.9.
The multipliers are blunt instruments — two 'moderately active' people can differ substantially. The honest calibration protocol: pick the lower of two candidate levels, eat at the computed maintenance for 2–3 weeks while weighing daily under consistent conditions, then compare the trend. Gaining means true TDEE sits below the estimate; losing means above. One calibration cycle beats any formula refinement.
NEAT (non-exercise activity thermogenesis) is the hidden variable that breaks most estimates: fidgeting, walking, standing, chores and occupational movement vary by 300–800+ kcal/day between otherwise similar people. Two desk workers with identical gym routines can differ by 500 kcal in TDEE purely through steps and posture. When estimates and reality diverge, NEAT — not a 'broken metabolism' — is usually the gap; a cheap step counter diagnoses it in a week.
Exercise calories deserve skepticism in both directions. Trackers and machines overestimate burn 20–50%, and the body compensates for big sessions by moving less afterward (constrained energy expenditure). The practical rule: log training for performance, fuel it adequately, but don't 'eat back' more than half the stated burn — and judge by the scale trend, never the watch face.
TDEE is a moving target that must be rechecked: every ~5 kg of weight change, every training-phase change, every job or season change in daily movement. Maintenance at 90 kg is not maintenance at 80 kg — the ~100–150 kcal drift explains most 'mysterious' plateaus. Set a quarterly recalculation habit alongside the BMR refresh.
Use maintenance as the baseline for everything else: subtract 300–600 for sustainable loss, add 200–300 for lean gain, hold steady for recomposition with high protein and progressive training. All three strategies in the calorie calculator start from this number — its accuracy is the foundation every goal stands on.
A 28-year-old female at 68 kg, 172 cm, lightly active: BMR ≈ 1,478 → TDEE ≈ 2,032 kcal/day. Eating near that holds weight steady by definition of maintenance. A NEAT contrast: the same woman averaging 12,000 daily steps versus 4,000 may burn ~300–400 kcal more — the difference between effortless maintenance and slow gain on identical meals.
Last reviewed: September 2026 · Report an error