Height converter
Divide inches by twelve for the feet and keep the remainder: 175 cm is 68.9 inches, which is 5 feet 8.9 inches. Usually rounded to 5 foot 9.
How to convert a height
The step that trips people is that feet and inches is not a decimal system. 5.9 feet is not 5 foot 9. It is 5 feet and 0.9 of a foot, which is 5 foot 10.8. To read a height properly, take the whole feet and multiply the fraction by twelve. The useful anchors to memorise are 5 foot even at 152.4 cm, 5 foot 6 at 167.6, 5 foot 10 at 177.8 and 6 foot at 182.9. Passport and medical forms usually want centimetres to the nearest whole number, so rounding is expected rather than a problem.
Questions
About 5 foot 8.9, normally given as 5 foot 9.
No. 5.9 feet is 5 foot 10.8. Multiply the decimal part by twelve to get the inches.
182.88, usually given as 183.
Multiply the feet by twelve, add the inches, then multiply by 2.54.
To the nearest centimetre is fine for any form. Anything more precise is measurement noise — height varies by a centimetre or so through the day.