Height 171 cm: what is the ideal weight?
You are 171 cm tall and wondering how much you should weigh? Here are the results of the eight most used formulas for a 30-year-old woman and man with a medium frame, along with the healthy BMI zone used in Thailand. Use the calculator to add your own age, wrist size and weight.
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Your realistic range
52.5 to 56 kg
The middle of the eight formulas, inside the Asian healthy BMI zone.
- Healthy BMI zone (18.5 to 22.9): 47.4 to 58.6 kg
- The formulas range from 51 to 57.2 kg (average 54.2 kg).
- Medium frame assumed (add your wrist size to estimate it).
The eight formulas side by side
The green band is the healthy BMI zone, the dark band your realistic range.
- average54.2
Thai formula (น้ำหนักมาตรฐาน) · 54 kgHeight minus 100 (men), minus 100 then 10% (women).
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Thai น้ำหนักมาตรฐาน formula
- Textbook version
- 54 kg
- 160 − 100 − 10%
- "Height minus 110" variant
- 50 kg
- 160 − 110
Normal zone by this rule (90% to 110%): 48.6 to 59.4 kg
Thai sources vary: the tool uses the version taught in nutrition textbooks.
Target waist size
Under 80 cm
- Half your height: 80 cm
- Asian limit (IDF): 80 cm
Ideal weight chart by height
Heights close to yours: Female, age 30, same frame.
| Height (cm) | Realistic range | Thai formula |
|---|---|---|
| 154 | 47 to 51.5 kgHealthy BMI: 43.9 to 54.3 kg | 48.6 |
| 156 | 49 to 53 kgHealthy BMI: 45 to 55.7 kg | 50.4 |
| 158 | 50.5 to 55 kgHealthy BMI: 46.2 to 57.2 kg | 52.2 |
| 160you | 52.5 to 56 kgHealthy BMI: 47.4 to 58.6 kg | 54 |
| 162 | 54 to 57.5 kgHealthy BMI: 48.6 to 60.1 kg | 55.8 |
| 164 | 56 to 59 kgHealthy BMI: 49.8 to 61.6 kg | 57.6 |
| 166 | 57 to 60 kgHealthy BMI: 51 to 63.1 kg | 59.4 |
Same calculation as your result above, rounded to the nearest half kilo. The light bar is the healthy BMI zone, the dark bar the realistic range.
Woman, 171 cm
Realistic range: 61 to 64 kg.
The formulas range from 60.4 to 66.6 kg.
Thai textbook formula: 63.9 kg ("height minus 110" variant: 61 kg).
Devine 62.3 kg Robinson 61.4 kg Miller 63.1 kg Hamwi 61.6 kg Broca 60.4 kg Lorentz 62.6 kg Creff 66.6 kg Thai formula 63.9 kg Man, 171 cm
Realistic range: 64 to 67 kg.
The formulas range from 63.9 to 71 kg.
Thai textbook formula: 71 kg ("height minus 110" variant: 71 kg).
Devine 66.8 kg Robinson 65.9 kg Miller 66.5 kg Hamwi 67.8 kg Broca 63.9 kg Lorentz 65.8 kg Creff 66.6 kg Thai formula 71 kg Healthy BMI zone for 171 cm
With the Asian cut-offs used by Thailand's Department of Health, a weight of 54.1 to 67 kg means a BMI of 18.5 to 22.9, for both sexes. Below 54.1 kg, BMI shows underweight; from 67.3 kg, overweight; from 73.1 kg, obesity level 1.
Target waist size
At 171 cm, the recommended waist size is under 85.5 cm (half your height), and in any case under 80 cm for women and 90 cm for men according to the Asian limit.
These tools give general information. They do not replace the advice of a doctor or a qualified professional.
Frequently asked questions
- How much should a woman who is 171 cm tall weigh?
- For a 30-year-old woman of 171 cm with a medium frame, the formulas give a realistic range of 61 to 64 kg, inside the healthy BMI zone of 54.1 to 67 kg.
- How much should a man who is 171 cm tall weigh?
- For a 30-year-old man of 171 cm with a medium frame, the realistic range is 64 to 67 kg, inside the same healthy BMI zone of 54.1 to 67 kg.
- What is the น้ำหนักมาตรฐาน for 171 cm?
- By the Thai textbook rule: 71 kg for men (171 − 100) and 63.9 kg for women (171 − 100, minus 10%). The "height minus 110" variant gives 61 kg for women.