Exact calorie targets for 80 kg men — weight loss, maintenance and muscle gain.
Using the Mifflin-St Jeor equation — the most validated formula in nutrition science — a 80 kg man of average height (177 cm) aged 35 burns approximately 1736 kcal/day at rest (BMR). With typical daily activity added, total daily calorie expenditure (TDEE) ranges from 2083 to 2995 kcal depending on lifestyle.
| Goal | Daily Calories | Expected Result |
|---|---|---|
| 🔵 Aggressive weight loss | 1637 kcal | ~0.75 kg/week |
| 📉 Weight loss | 1887 kcal | ~0.5 kg/week |
| ✅ Maintenance | 2387 kcal | Weight stable |
| 💪 Lean bulk | 2687 kcal | ~0.25–0.3 kg/week |
| 🏋️ Aggressive bulk | 2887 kcal | ~0.5 kg/week |
| Activity Level | Description | Daily Calories |
|---|---|---|
| Sedentary | Desk job, no exercise | 2083 kcal |
| Lightly active | 1–3 workouts/week | 2387 kcal |
| Moderately active | 3–5 workouts/week | 2691 kcal |
| Very active | Hard training 6–7 days/week | 2995 kcal |
For a man of average height (177 cm), a weight of 80 kg gives a BMI of 25.5 — above the healthy range. BMI is one indicator, but waist circumference and body composition provide additional context.
At 2387 kcal/day (maintenance), a balanced macronutrient split:
| Macro | % of calories | Grams/day | Calories |
|---|---|---|---|
| Protein | 30% | 179 g | 716 kcal |
| Carbohydrates | 40% | 239 g | 955 kcal |
| Fat | 30% | 80 g | 716 kcal |
For weight loss (1887 kcal/day), increase protein to 35% (165 g) to preserve muscle during the deficit.
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