About this tool
BMR is your at-rest energy expenditure. TDEE multiplies BMR by an activity factor to estimate daily calorie needs.
Formula
Mifflin-St Jeor: Men: 10·W + 6.25·H − 5·A + 5. Women: 10·W + 6.25·H − 5·A − 161. (W=kg, H=cm, A=years.) TDEE = BMR · activityFactor.
Worked example
Male, 30, 70 kg, 175 cm → BMR ≈ 1,649 kcal/day. At moderate activity (×1.55) → TDEE ≈ 2,556 kcal/day.
Notes
Activity factors: 1.2 sedentary, 1.375 light, 1.55 moderate, 1.725 active, 1.9 very active. Mifflin-St Jeor is more accurate than Harris-Benedict for modern populations.