Where do these numbers come from?
- NISTSP 811 exact unit definitions (1 in = 25.4 mm, 1 lb = 453.59237 g)current edition
- NISTHandbook 44, weights and measurescurrent edition
- King Arthur BakingIngredient Weight Chart (kitchen tools)retrieved Oct 23, 2026
Checked Oct 23, 2026. 1 inch is exactly 2.54 cm (NIST SP 811), so 175 cm ÷ 2.54 = 68.9 in = 5 ft 8.9 in.
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Height chart
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How to convert height
One inch is exactly 2.54 cm and one foot is 30.48 cm. Divide centimetres by 2.54 for total inches, then divide by 12: 170 cm = 66.9 inches = 5 ft 6.9 in, and 180 cm = 70.9 inches = 5 ft 10.9 in.
Rounding
Heights are usually rounded to the nearest half inch or inch. Medical records often keep centimetres to one decimal place, so convert from the exact figure rather than a rounded one.
Frequently asked questions
How tall is 170 cm in feet?
5 ft 6.9 in.
How tall is 160 cm in feet?
5 ft 3 in (62.99 inches).
How many cm is 6 feet?
182.88 cm.