Convert length units instantly — meters, feet, inches, centimeters, kilometers, miles, and more.
| Unit | Name | Value |
|---|---|---|
| m | Meter | 0.0254 |
| km | Kilometer | 0.0000254 |
| cm | Centimeter | 2.54 |
| mm | Millimeter | 25.4 |
| ft | Foot | 0.083333333 |
| yd | Yard | 0.027777778 |
| mi | Mile | 0.000015782828 |
| nmi | Nautical Mile | 0.000013714903 |
Multiply the number of Inchs by 2.54 to get Centimeters. Formula: cm = in × 2.54. Example: 10 in × 2.54 = 25.4 cm. To reverse, divide Centimeters by 2.54 to get Inchs.
| Inch (in) | Centimeter (cm) |
|---|---|
| 0.001 in | 0.00254 cm |
| 0.01 in | 0.0254 cm |
| 0.1 in | 0.254 cm |
| 0.5 in | 1.27 cm |
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 5 in | 12.7 cm |
| 10 in | 25.4 cm |
| 20 in | 50.8 cm |
| 50 in | 127 cm |
| 100 in | 254 cm |
| 250 in | 635 cm |
| 500 in | 1270 cm |
| 1000 in | 2540 cm |
| 10000 in | 25400 cm |
To convert Inch to Centimeter, multiply by 2.54. Example: 10 in = 25.4 cm
To convert Centimeter back to Inch, divide by 2.54 (multiply by 0.393701). Use the swap button above.
Start with 100 Inchs = 254 cm as your reference point. Scale up or down from there.
Screen sizes are universally marketed in diagonal inches (a 27" monitor = 68.58 cm) while panel specifications use centimetres. Display manufacturers worldwide convert between inches and centimetres for every product specification and listing.
US clinical measurements use inches for height and wound size while international medical literature uses centimetres. Every patient record, clinical trial, and medical device standard that crosses borders requires inch-to-cm conversion.
US clothing patterns use inches while European sizes use centimetres. Every international fashion brand, online retailer, and tailor working across markets converts between inches and centimetres for every sizing chart.
US building materials and hardware are specified in inches while metric countries use centimetres. DIY enthusiasts and contractors importing materials convert between the two for every fitting and installation job.
CAD files from US designers use inches while international collaborators and most 3D printing software defaults to centimetres — makers and engineers convert between inches and centimetres for every shared design file.
US toy safety standards specify dimensions in inches while EU EN71 standards use centimetres. Manufacturers selling in both markets convert between inches and centimetres for every product compliance submission.
The Inch is a unit of Length measurement (symbol: in). 1 in = 2.54 cm. Used in scientific and practical Length measurement applications.
The Centimeter is a unit of Length measurement (symbol: cm). It is part of an internationally recognised measurement system used alongside the Inch.
The inch has one of the most colourful origin stories in measurement history. An English statute from 1324 under King Edward II defined it as 'three grains of barley, dry and round, placed end to end'. Before that, it was often defined as the width of a thumb — hence the word in many languages (French: 'pouce', Dutch: 'duim', both meaning thumb). The inch was standardised at exactly 25.4 mm in 1959 under the International Yard and Pound Agreement signed by the US, UK, Canada, Australia, and South Africa. It remains dominant in the US and is universally used for screen sizes globally.
The centimetre was introduced in 1795 as part of the French metric system — one-hundredth of a metre, from the Latin 'centum' (hundred). The CGS (centimetre-gram-second) system, built around the centimetre, became the dominant scientific measurement system of the 19th century and remains standard in astrophysics and electromagnetism today. The centimetre is now the primary unit for human body measurements, clothing sizes, and everyday objects in most of the world.
Common use: Inch to Centimeter conversion is needed when working with international standards, scientific publications, or reference materials that use different unit systems for Length measurement.