For someone 4 feet 9 inches tall (144.8 cm), a healthy weight is 38.8 to 52.2 kg by the WHO BMI range, or up to 48 kg by the Asian range used in India. Ideal body weight averages 45 kg for a man and 43 kg for a woman.
| Weight (kg) | Weight (lb) | BMI | WHO category | Asian category |
|---|---|---|---|---|
| 33.5 kg | 74 lb | 16 | Underweight | Underweight |
| 35.6 kg | 79 lb | 17 | Underweight | Underweight |
| 38.8 kg | 85 lb | 18.5 | Healthy | Healthy |
| 41.9 kg | 92 lb | 20 | Healthy | Healthy |
| 44 kg | 97 lb | 21 | Healthy | Healthy |
| 46.1 kg | 102 lb | 22 | Healthy | Healthy |
| 48.2 kg | 106 lb | 23 | Healthy | Overweight |
| 50.3 kg | 111 lb | 24 | Healthy | Overweight |
| 52.4 kg | 116 lb | 25 | Overweight | Obese |
| 54.5 kg | 120 lb | 26 | Overweight | Obese |
| 57.6 kg | 127 lb | 27.5 | Overweight | Obese |
| 62.9 kg | 139 lb | 30 | Obese | Obese |
| 68.1 kg | 150 lb | 32.5 | Obese | Obese |
| 73.4 kg | 162 lb | 35 | Obese | Obese |
| 83.8 kg | 185 lb | 40 | Obese | Obese |
At 4 feet 9 inches, overweight starts at 52.4 kg (WHO) or 48.2 kg (Asian cut-off), and obesity at 62.9 kg (WHO) or 52.4 kg (Asian).
| Formula | Man | Woman |
|---|---|---|
| Devine (1974) | 43.1 kg (95 lb) | 38.6 kg (85 lb) |
| Robinson (1983) | 46.3 kg (102 lb) | 43.9 kg (97 lb) |
| Miller (1983) | 52 kg (115 lb) | 49 kg (108 lb) |
| Hamwi (1964) | 39.9 kg (88 lb) | 38.9 kg (86 lb) |
| Average of the four | 45.3 kg (100 lb) | 42.6 kg (94 lb) |
Ideal body weight (IBW) formulas were designed for medicine doses, not as a target, and they ignore frame size and muscle. Use them alongside the healthy BMI range. Below 5 feet the formulas subtract weight for each inch under 5 feet and are less reliable.
Keep your waist under half your height: under 72 cm (28.5 inches) at 4'9". Waist-to-height ratio predicts heart and diabetes risk better than BMI alone, especially for South Asian adults.
| Waist-to-height | Waist at 4'9" | Meaning |
|---|---|---|
| Under 0.4 | under 58 cm | May be too slim |
| 0.4 – 0.49 | 58–71 cm | Healthy |
| 0.5 – 0.59 | 72–85 cm | Increased risk |
| 0.6 or more | 87 cm or more | High risk |
A healthy weight for a woman 4 feet 9 inches tall is 39–52 kg (BMI 18.5–24.9), or 39–48 kg for Asian women. Ideal body weight formulas give 39–49 kg.
A healthy weight for a man 4 feet 9 inches tall is 39–52 kg (BMI 18.5–24.9), or 39–48 kg for Asian men. Ideal body weight formulas give 40–52 kg.
At 145 cm, aim for 39–52 kg. Above 52 kg is overweight by WHO standards (48 kg by Asian standards).
4 feet 9 inches is 144.8 cm (57 inches × 2.54).