Length converter
Inch to Centimeter Converter
Convert in to cm or reverse with one click. Type a value below for an instant result.
Inch in
Centimeter cm
in → cm · runs in your browser, no server
How to convert inch to centimeter
Inch (in) and Centimeter (cm) both measure length. Whether you are studying, traveling, cooking, or working on a project, converting between them should be fast and accurate.
This page converts inch to centimeter — ideal when American or British measurements need to match metric specs, school assignments, or international standards.
The standard relationship used on this page means that 1 inch equals 2.54 cm. Enter any number in the calculator — use the swap button to reverse the direction without leaving the page.
12 inches equals 30.48 cm — common for screen diagonals, lumber sizes, and height when metric is required.
Need centimeter to inch instead? Try our Centimeter to Inch converter. cm → inch
When you'll use this
- Filling out a European visa, medical, or gym intake form that asks for height in centimeters
- Converting American shoe or clothing sizes (often given in inches) for a European size chart
- Sending US lumber or DIY project dimensions to a contractor or supplier who works in metric
- Checking whether a US-sized baking pan (9-inch round, 13-inch skillet) will fit a European oven spec
- Matching a school worksheet or engineering drawing that must be submitted in metric units
Practical note
This direction gets heavy use from people filling out forms outside the US: a European rental application, an NHS or EU medical intake form, or an international gym membership that only accepts centimeters. Typing in a height like 68 inches returns 172.7 cm instantly, which is exact enough to put straight into an official document. It also comes up in the kitchen — a US recipe calling for a "9-inch cake pan" converts to about 22.9 cm, which matters when buying bakeware in a country that sells pans by centimeter diameter instead of the American inch-based sizing convention.
Tips
- Height is the most common use of this page — 5'7" (67 inches) converts to about 170.2 cm, a number worth memorizing if you travel or fill out international forms often.
- Remember the inch-to-cm factor (2.54) is exact, so results carry as many decimal places as you need with no rounding error from the conversion itself.
- Lumber and pan sizes in the US are nominal, not exact — a "2×4" board is not actually 2 by 4 inches, so convert the actual measured dimension, not the nominal name.
Read our full guide: Body height: cm vs feet and inches
in to cm conversion table
| in | cm |
|---|---|
| 1 | 2.54 |
| 2 | 5.08 |
| 5 | 12.7 |
| 10 | 25.4 |
| 25 | 63.5 |
| 50 | 127 |
| 100 | 254 |
| 150 | 381 |
| 200 | 508 |
cm to in conversion table
Or click the swap button in the converter to switch from cm to in.
| cm | in |
|---|---|
| 1 | 0.393700 |
| 2 | 0.787401 |
| 6 | 2.362204 |
| 12 | 4.724409 |
| 24 | 9.448818 |
| 36 | 14.173228 |
| 48 | 18.897637 |
| 60 | 23.622047 |
| 72 | 28.346456 |
Frequently asked questions
How many centimeters are in 1 inch? +
One inch equals 2.54 cm. Use the converter above for any value — results are calculated locally with full precision.
How do I convert in to cm? +
Use the formula: cm = in × 2.54. Enter your value in the calculator and the result appears instantly. Click the swap button to convert cm back to in.
How many inches are in 1 centimeter? +
One centimeter equals 0.393700 in. Swap the converter direction to work backwards from cm to in.
What is 10 in in cm? +
10 in is 25.4 cm. See the conversion table on this page for more common values.
When would I convert inch to centimeter? +
This conversion is useful for travel distances, screen sizes, furniture dimensions, and construction plans. ConvertHub runs entirely in your browser — no data is uploaded to any server.
Is inch to centimeter the same as centimeter to inch? +
They are inverse operations. This page focuses on in → cm with examples and tables for that direction. For cm → in, use our separate centimeter to inch converter page.