BMI chart for 5 ft 6 in (168 cm)
At 5 ft 6 in, a healthy weight is 115 to 154 lb (52.0 to 70.2 kg).
That is a BMI of 18.5 to 24.9, the World Health Organization's range for adults. BMI is a screen, not a diagnosis.
Updated October 2026
Where each BMI category starts at 5 ft 6 in
| Category | BMI | Weight (lb) | Weight (kg) |
|---|---|---|---|
| Underweight | under 18.5 | under 115 | under 52.0 |
| Healthy weight | 18.5 to 24.9 | 115 to 154 | 52.0 to 70.2 |
| Overweight | 25 to 29.9 | 155 to 185 | 70.3 to 84.2 |
| Obesity, class I | 30 to 34.9 | 186 to 216 | 84.3 to 98.3 |
| Obesity, class II | 35 to 39.9 | 217 to 247 | 98.4 to 112.3 |
| Obesity, class III | 40 and over | 248 and over | 112.4 and over |
BMI at 5 ft 6 in by weight
| Weight | BMI | Category |
|---|---|---|
| 100 lb (45 kg) | 16.1 | Underweight |
| 110 lb (50 kg) | 17.8 | Underweight |
| 120 lb (54 kg) | 19.4 | Healthy weight |
| 130 lb (59 kg) | 21.0 | Healthy weight |
| 140 lb (64 kg) | 22.6 | Healthy weight |
| 150 lb (68 kg) | 24.2 | Healthy weight |
| 160 lb (73 kg) | 25.8 | Overweight |
| 170 lb (77 kg) | 27.4 | Overweight |
| 180 lb (82 kg) | 29.1 | Overweight |
| 190 lb (86 kg) | 30.7 | Obesity, class I |
| 200 lb (91 kg) | 32.3 | Obesity, class I |
| 210 lb (95 kg) | 33.9 | Obesity, class I |
| 220 lb (100 kg) | 35.5 | Obesity, class II |
| 230 lb (104 kg) | 37.1 | Obesity, class II |
| 240 lb (109 kg) | 38.7 | Obesity, class II |
| 250 lb (113 kg) | 40.4 | Obesity, class III |
| 260 lb (118 kg) | 42.0 | Obesity, class III |
| 270 lb (122 kg) | 43.6 | Obesity, class III |
Other heights
Questions
What is a healthy weight for someone 5 ft 6 in?
A healthy weight at 5 ft 6 in (168 cm) is 115 to 154 lb (52.0 to 70.2 kg), which is a BMI of 18.5 to 24.9.
What BMI is overweight at 5 ft 6 in?
At 5 ft 6 in, a BMI of 25 starts at 155 lb (70.3 kg). A BMI of 30, which is where obesity begins, starts at 186 lb (84.3 kg).
What is underweight at 5 ft 6 in?
Below 115 lb (52.0 kg), which is a BMI under 18.5, is classed as underweight for an adult.
Is BMI a good measure of health?
It is a quick screen for adults and no more. It cannot tell muscle from fat, so a muscular person can read as overweight. Ask a doctor about your weight if you are unsure.
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