You can round it to 10’s or 5’s.
My licence says 183 cm. I’ll usually say 180.
Do Europeans really give their height in cm?
Yes.
Never ask why never.
Not when it comes to height measurement.
…Not when it comes to height measurement.
That last one is my favorite because they say they only do it in centimeters and then immediately in the next sentence say they also give it in meters, lol.
1.8 is too imprecise. It includes both 1.80 and 1.89. do you think it’s fine to approximate your height to the nearest 4 inches?
Why ever would a 6’ 2" person bother with the 2"?
Even if they are used rarely, they are still named.
So it is good to know they exist in order to explain the metric system.
I was still taught them back in the day in Belgium.
When using feet and inches, its fine to use precision of 1 inch as it’s much smaller unit than 0.1 m.
If one says that they are 5’11" (180.34 cm), they can be 5’10.5" (179.07 cm) to 5’11.5" (181.61 cm) tall. That’s 1.4% variance.
If using meters with one decimal place, and say they are 1.8 m (5’10.9"), they can be 175 cm (5’8.9") to 185 cm (6’0.8") tall. That’s 5.6% variance.
Thus it’s not really viable to use only one decimal place when using metres as unit, so in many languages it’s easier to just say the length in centimeters compared to use two deeimal places.