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CM to Inches Converter

Convert centimeters to inches with a live, two-way field.

Decimals
Result
Inches
11.81in
Feet and inches
0' 11.81"
Common values
CentimetersInchesFeet and inches
1 cm0.39 in0' 0.4"
2 cm0.79 in0' 0.8"
5 cm1.97 in0' 2"
10 cm3.94 in0' 3.9"
15 cm5.91 in0' 5.9"
20 cm7.87 in0' 7.9"
25 cm9.84 in0' 9.8"
30 cm11.81 in0' 11.8"
50 cm19.69 in1' 7.7"
100 cm39.37 in3' 3.4"
150 cm59.06 in4' 11.1"
180 cm70.87 in5' 10.9"
200 cm78.74 in6' 6.7"

How to convert cm to inches

  1. Enter centimeters

    Type a length in centimeters into the top field to see the inch value update instantly.

  2. Or edit inches

    Change the inches field instead and the centimeter value recalculates the other way.

  3. Set precision

    Pick the number of decimal places or switch on rounding to the nearest 1/16 inch fraction.

  4. Copy the result

    Copy the converted value, or read the feet-and-inches breakdown below the fields.

Why use this tool

Two-way conversion

Edit either the centimeter or the inch field. The other side updates live using the exact 2.54 factor.

Feet and inches

Every length is also shown broken down into whole feet plus remaining inches for practical use.

Fraction rounding

Round inches to the nearest 1/16 for tape-measure and woodworking work, or keep clean decimals.

Reference table

A table of common centimeter values maps each to its inch equivalent so you can scan at a glance.

Private by design

Every calculation runs on your device. Nothing you type is uploaded or stored anywhere.

About this tool

This CM to Inches Converter turns any length in centimeters into inches and back again, live, as you type. One inch is defined as exactly 2.54 centimeters, so the conversion is a simple division: inches equal centimeters divided by 2.54. That exact factor means the result is precise, not an approximation, and you control how many decimal places to show.

The tool is two-way. Edit the centimeter field and the inch value updates, or edit the inch field and the centimeter value follows. Alongside the plain inch result you get a feet-and-inches breakdown, which is how heights and room dimensions are usually spoken in countries that use the imperial system. For hands-on work you can round inches to the nearest 1/16, matching the smallest marks on a standard tape measure, so the figure you copy is one you can actually measure.

A reference table lists frequently searched centimeter values next to their inch equivalents, handy for quick sanity checks on screen sizes, paper, clothing, and body measurements. Negative and zero inputs are handled cleanly, and very large values stay readable instead of overflowing. If you work in other units too, try the miles to kilometers converter, the broader area converter, or the volume converter.

Frequently asked questions

How do you convert cm to inches?
Divide the length in centimeters by 2.54. For example, 30 cm divided by 2.54 is about 11.81 inches. This tool does that division for you as you type.
Is the conversion exact?
Yes. One inch is defined as exactly 2.54 centimeters, so the underlying math is exact. Any rounding you see comes only from the decimal places or fraction setting you choose.
Can I convert inches back to centimeters?
Yes. The two fields are linked both ways. Edit the inches field and the centimeter value updates using the same 2.54 factor in reverse.
What is the 1/16 inch rounding option?
It rounds the inch result to the nearest sixteenth of an inch, the smallest common mark on a tape measure. This gives you a fraction you can line up against a real ruler.
What happens with zero or negative values?
Zero converts to zero. Negative numbers convert normally and keep their sign. Empty or non-numeric input simply shows a hint instead of an error.

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