Height Calculator
Convert heights between units (cm, feet, inches, meters), predict child adult height from parents, and calculate height percentiles.
Results
Height
5'7"
170 cm
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Results
Feet & Inches
5'7"
Centimeters
170 cm
Meters
1.7 m
Total Inches
66.93 in
Common Height Conversions
| Feet/Inches | Centimeters | Meters |
|---|---|---|
| 5'0" | 152.4 | 1.52 |
| 5'4" | 162.56 | 1.63 |
| 5'6" | 167.64 | 1.68 |
| 5'8" | 172.72 | 1.73 |
| 5'10" | 177.8 | 1.78 |
| 6'0" | 182.88 | 1.83 |
| 6'2" | 187.96 | 1.88 |
| 6'4" | 193.04 | 1.93 |
Average Heights by Country
| Country | Men | Women |
|---|---|---|
| Netherlands | 6'0" (183.8 cm) | 5'7" (170.4 cm) |
| Denmark | 5'11" (181.4 cm) | 5'6" (168.7 cm) |
| Germany | 5'11" (180.3 cm) | 5'5" (166.2 cm) |
| United States | 5'9" (175.3 cm) | 5'4" (162.6 cm) |
| United Kingdom | 5'10" (177.5 cm) | 5'5" (164.4 cm) |
| Japan | 5'7" (171.2 cm) | 5'3" (158.8 cm) |
| China | 5'7" (169.7 cm) | 5'2" (158.6 cm) |
| India | 5'5" (165.3 cm) | 5'0" (152.6 cm) |
Quick Answer
To predict a child's adult height: add mother's and father's heights, add 5 inches for boys or subtract 5 inches for girls, divide by 2. This mid-parental height method gives a rough estimate within 4 inches. Example: Mom 5'4" (64") + Dad 5'10" (70") = 134", for a boy: (134+5)/2 = 69.5" (5'9.5"). Genetics, nutrition, and health also affect final height.
Key Facts
- Mid-parental height formula: (Mom + Dad + 5 for boys / -5 for girls) / 2
- Height prediction accuracy: typically within 4 inches of actual
- 1 inch = 2.54 centimeters
- 1 foot = 12 inches = 30.48 centimeters
- Average US male height: 5'9" (175.3 cm); Female: 5'4" (162.6 cm)
- Most growth occurs before puberty; growth plates close around 16-18 (girls) and 18-21 (boys)
- Height is 60-80% determined by genetics
- Bone age X-rays provide more accurate height predictions
Frequently Asked Questions
1 inch = 2.54 cm, 1 foot = 12 inches = 30.48 cm, 1 meter = 100 cm. To convert feet/inches to cm: (feet × 30.48) + (inches × 2.54). For example, 5'10" = (5 × 30.48) + (10 × 2.54) = 177.8 cm.
The mid-parental height method predicts adult height within ±8.5 cm (3.3 inches) for about 95% of children. Actual height depends on many factors including nutrition, health, and genetics beyond just parental height.
Height percentile indicates what percentage of the population is shorter than you. At the 75th percentile, you're taller than 75% of people. The 50th percentile is average. Percentiles vary by age and gender.
Global averages vary by country. In the US: men average 5'9" (175 cm), women average 5'4" (163 cm). Netherlands has the tallest average: men 6'0" (183 cm), women 5'7" (170 cm). Averages have increased over the past century.
Most people stop growing between ages 16-18 (girls) or 18-21 (boys). Growth plates in bones close after puberty ends. Factors affecting growth include genetics, nutrition, sleep, and hormones.
Results
Height
5'7"
170 cm