BMI chart for 170 cm (5 ft 7 in)
At 170 cm, a healthy weight is 118 to 159 lb (53.5 to 72.1 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 170 cm
| Category | BMI | Weight (lb) | Weight (kg) |
|---|---|---|---|
| Underweight | under 18.5 | under 118 | under 53.5 |
| Healthy weight | 18.5 to 24.9 | 118 to 158 | 53.5 to 72.1 |
| Overweight | 25 to 29.9 | 159 to 190 | 72.2 to 86.6 |
| Obesity, class I | 30 to 34.9 | 191 to 222 | 86.7 to 101.0 |
| Obesity, class II | 35 to 39.9 | 223 to 254 | 101.1 to 115.5 |
| Obesity, class III | 40 and over | 255 and over | 115.6 and over |
BMI at 170 cm by weight
| Weight | BMI | Category |
|---|---|---|
| 100 lb (45 kg) | 15.7 | Underweight |
| 110 lb (50 kg) | 17.3 | Underweight |
| 120 lb (54 kg) | 18.8 | Healthy weight |
| 130 lb (59 kg) | 20.4 | Healthy weight |
| 140 lb (64 kg) | 22.0 | Healthy weight |
| 150 lb (68 kg) | 23.5 | Healthy weight |
| 160 lb (73 kg) | 25.1 | Overweight |
| 170 lb (77 kg) | 26.7 | Overweight |
| 180 lb (82 kg) | 28.3 | Overweight |
| 190 lb (86 kg) | 29.8 | Overweight |
| 200 lb (91 kg) | 31.4 | Obesity, class I |
| 210 lb (95 kg) | 33.0 | Obesity, class I |
| 220 lb (100 kg) | 34.5 | Obesity, class I |
| 230 lb (104 kg) | 36.1 | Obesity, class II |
| 240 lb (109 kg) | 37.7 | Obesity, class II |
| 250 lb (113 kg) | 39.2 | Obesity, class II |
| 260 lb (118 kg) | 40.8 | Obesity, class III |
| 270 lb (122 kg) | 42.4 | Obesity, class III |
Other heights
Questions
What is a healthy weight for someone 170 cm?
A healthy weight at 170 cm (5 ft 7 in) is 118 to 159 lb (53.5 to 72.1 kg), which is a BMI of 18.5 to 24.9.
What BMI is overweight at 170 cm?
At 170 cm, a BMI of 25 starts at 159 lb (72.2 kg). A BMI of 30, which is where obesity begins, starts at 191 lb (86.7 kg).
What is underweight at 170 cm?
Below 118 lb (53.5 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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