Exact calorie targets for 55 kg women — weight loss, maintenance and muscle gain.
Using the Mifflin-St Jeor equation — the most validated formula in nutrition science — a 55 kg woman of average height (163 cm) aged 35 burns approximately 1233 kcal/day at rest (BMR). With typical daily activity added, total daily calorie expenditure (TDEE) ranges from 1480 to 2127 kcal depending on lifestyle.
| Goal | Daily Calories | Expected Result |
|---|---|---|
| 🔵 Aggressive weight loss | 945 kcal | ~0.75 kg/week |
| 📉 Weight loss | 1195 kcal | ~0.5 kg/week |
| ✅ Maintenance | 1695 kcal | Weight stable |
| 💪 Lean bulk | 1995 kcal | ~0.25–0.3 kg/week |
| 🏋️ Aggressive bulk | 2195 kcal | ~0.5 kg/week |
| Activity Level | Description | Daily Calories |
|---|---|---|
| Sedentary | Desk job, no exercise | 1480 kcal |
| Lightly active | 1–3 workouts/week | 1695 kcal |
| Moderately active | 3–5 workouts/week | 1911 kcal |
| Very active | Hard training 6–7 days/week | 2127 kcal |
For a woman of average height (163 cm), a weight of 55 kg gives a BMI of 20.7 — in the healthy range. BMI is one indicator, but waist circumference and body composition provide additional context.
At 1695 kcal/day (maintenance), a balanced macronutrient split:
| Macro | % of calories | Grams/day | Calories |
|---|---|---|---|
| Protein | 30% | 127 g | 508 kcal |
| Carbohydrates | 40% | 170 g | 678 kcal |
| Fat | 30% | 56 g | 508 kcal |
For weight loss (1195 kcal/day), increase protein to 35% (105 g) to preserve muscle during the deficit.
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