CM to inches converter
Centimetres to inches and back, instantly, with heights split into feet and inches for you. One inch is exactly 2.54 cm, and this uses exactly that.
Guide
How to use it
- Type centimetres on the left, or inches on the right, both directions work.
- For heights, read the blue line: anything of 12 inches or more is also shown as feet and inches.
- The grey line shows the exact factor so you can repeat the maths on paper.
Examples
Worked examples
180 cm ÷ 2.54 = 70.87 in = 5 ft 10.9 in. Near enough five eleven for the dating profile, exactly 70.87 for the form.
The alcove is 122 cm wide; a 55-inch TV is about 48.4 in (123 cm) wide including bezels. 122 × 0.3937 = 48.03 in: too tight, measure the actual set.
Swap directions: 32 in × 2.54 = 81.3 cm, the number European sizing charts want.
Method
How it works
Since 1959 the inch has been defined as exactly 25.4 mm, so cm to inches is a single division by 2.54 with no approximation. The feet-and-inches readout divides total inches by 12 and shows the remainder, the format height charts, and people, actually use.
Runs entirely in your browser, offline included.
FAQ
Frequently asked questions
How many inches is 1 cm?
1 cm is 0.393701 inches. Going the other way, 1 inch is exactly 2.54 cm, which is the official definition, not an approximation.
How do I convert cm to feet and inches?
Divide by 2.54 for total inches, then split by 12. 175 cm is 68.9 inches, which is 5 ft 8.9 in. This converter does the split for you automatically.
What is 170 cm in height?
170 cm is 66.93 inches, or 5 ft 6.9 in, just under five foot seven.
Why do clothing sizes mix cm and inches?
Trousers and shirts are often sized in inches by tradition (waist and collar), while European sizing uses centimetres. Converting the measurement is safer than trusting the size label across brands.
How precise is the conversion?
Exact: the inch is defined as 25.4 mm, so there is no rounding in the factor, only in how many decimals you choose to keep.
Can I convert inches back to cm?
Yes, type in either box, or press swap. Both directions use the same exact definition.
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