Convert length units instantly — meters, feet, inches, centimeters, kilometers, miles, and more.
| Unit | Name | Value |
|---|---|---|
| m | Meter | 0.01 |
| km | Kilometer | 0.00001 |
| mm | Millimeter | 10 |
| in | Inch | 0.39370079 |
| ft | Foot | 0.032808399 |
| yd | Yard | 0.010936133 |
| mi | Mile | 0.0000062137119 |
| nmi | Nautical Mile | 0.000005399568 |
Multiply the number of Centimeters by 0.393701 to get Inchs. Formula: in = cm × 0.393701. Example: 10 cm × 0.393701 = 3.93701 in. To reverse, divide Inchs by 0.393701 to get Centimeters.
| Centimeter (cm) | Inch (in) |
|---|---|
| 0.001 cm | 0.000393701 in |
| 0.01 cm | 0.00393701 in |
| 0.1 cm | 0.0393701 in |
| 0.5 cm | 0.19685 in |
| 1 cm | 0.393701 in |
| 2 cm | 0.787402 in |
| 5 cm | 1.9685 in |
| 10 cm | 3.93701 in |
| 20 cm | 7.87402 in |
| 50 cm | 19.685 in |
| 100 cm | 39.3701 in |
| 250 cm | 98.4252 in |
| 500 cm | 196.85 in |
| 1000 cm | 393.701 in |
| 10000 cm | 3937.01 in |
To convert Centimeter to Inch, multiply by 0.393701. Example: 10 cm = 3.93701 in
To convert Inch back to Centimeter, divide by 0.393701 (multiply by 2.54). Use the swap button above.
Start with 100 Centimeters = 39.3701 in as your reference point. Scale up or down from there.
Every international clothing brand converts between centimeter-based European sizing and inch-based US sizing. A 40 cm sleeve = 15.75 inches — fashion buyers, tailors, and e-commerce platforms perform this conversion millions of times daily.
Screen sizes are universally marketed in diagonal inches (a 15.6" laptop = 39.62 cm). Display manufacturers and retailers worldwide convert between centimeter panel dimensions and inch screen sizes for every product listing.
Medical imaging (MRI, CT, ultrasound) reports tumour sizes, organ dimensions, and wound measurements in centimeters. US clinicians and patients converting to inches for intuitive understanding perform this conversion in every patient consultation.
Building materials in Europe are specified in centimeters while US construction uses inches. Homeowners, contractors, and architects working across markets convert between cm and inches for every material specification and fitting.
CAD files from European engineers use centimeters while US manufacturing standards use inches. Engineers working internationally convert between the two for every part specification, tolerance definition, and assembly drawing.
Airline baggage rules specify dimensions in both centimeters and inches. Travellers checking suitcase dimensions against airline limits perform cm-to-inch conversion every time they pack for an international flight.
The Centimeter is a unit of Length measurement (symbol: cm). 1 cm = 0.393701 in. Used in scientific and practical Length measurement applications.
The Inch is a unit of Length measurement (symbol: in). It is part of an internationally recognised measurement system used alongside the Centimeter.
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 in 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.
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 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 and remains the dominant length unit in the US and universally used for screen sizes.
Common use: Centimeter to Inch conversion is needed when working with international standards, scientific publications, or reference materials that use different unit systems for Length measurement.