Centimeter to Inch Converter
Convert Centimeter (cm) to Inch (in). Results update as you type, with a conversion table and the formula below.
1 cm =
0.393701 in
cm to in conversion table
| cm | in |
|---|---|
| 1 | 0.393701 |
| 2 | 0.787402 |
| 3 | 1.1811 |
| 4 | 1.5748 |
| 5 | 1.9685 |
| 6 | 2.3622 |
| 7 | 2.7559 |
| 8 | 3.1496 |
| 9 | 3.5433 |
| 10 | 3.937 |
| 15 | 5.9055 |
| cm | in |
|---|---|
| 20 | 7.874 |
| 25 | 9.8425 |
| 30 | 11.811 |
| 40 | 15.748 |
| 50 | 19.685 |
| 60 | 23.622 |
| 70 | 27.5591 |
| 80 | 31.4961 |
| 90 | 35.4331 |
| 100 | 39.3701 |
How to use
- Type the cm value to convert.
- The result appears instantly in in; the swap button reverses direction.
- For common values, check the conversion table below.
Frequently asked questions
How many in is 1 cm?+
1 cm = 0.393701 in. The table below lists the values you'll reach for most often.
How wide is a 27-inch monitor really?+
27 inches is about 68.6cm measured diagonally. On a 16:9 panel that works out to roughly 59.8cm wide and 33.6cm tall. Reading the inch figure as a width overestimates the size considerably.
How accurate are the results?+
The math uses internationally standardized definitions; only the display is rounded to significant digits. Accurate enough for school, work and daily life.
How do I convert in back to cm?+
Hit the swap arrows in the middle of the converter above — the direction flips and your value is kept.
Is it really free?+
Yes. No sign-up, no install, no usage limits. The site is ad-supported.
Unit guide
The formula
1 cm equals 0.393701 in — multiply a cm value by 0.393701 to get in. Example: 5 cm × 0.393701 = 1.9685 in.
Going the other way, 1 in = 2.54 cm — multiply by 2.54, or hit the swap button on the converter above.
When is this conversion needed?
Useful whenever metric meets inches, feet and miles: overseas clothing and shoe sizes, monitor and TV specs, furniture dimensions and map distances.
Where centimetres meet inches
Screens are the classic case. A 27-inch or 55-inch figure is the diagonal, not the width, so checking whether a display fits a desk or a cabinet means working out the actual width and height separately. Overseas clothing measurements, print sizes (4×6 inches) and furniture dimensions are quoted in inches too.