About This Inches to Centimeters Converter
The inch (in) is an imperial unit equal to exactly 2.54 centimeters, used for small dimensions in the United States, United Kingdom, and Canada — screen sizes, paper dimensions, clothing measurements, and hardware specifications. The centimeter (cm) is the metric equivalent, equal to one hundredth of a meter, used by most of the world for the same everyday measurements. The conversion factor 2.54 is exact and internationally defined.
This converter supports six length units — inches, centimeters, meters, millimeters, feet, and yards. Seamstresses following metric sewing patterns, product designers specifying component dimensions for both US and global markets, and consumers comparing monitor or TV screen sizes across US-spec and European listings all use this converter as a daily reference.
How to Use This Converter
- Enter your length value in the Value field.
- Select the unit you are converting from (e.g., Inch) in the From selector.
- Select the unit you want in the To selector (e.g., Centimeter).
- The result and formula appear instantly below the inputs.
- Use Swap to reverse the direction in one click, or Reset to clear all fields.
Units Covered
| Unit | Symbol | Common Use |
|---|---|---|
| Inch | in | Screen sizes, hardware specs, US/UK small dimensions |
| Centimeter | cm | Body measurements, clothing, furniture in metric countries |
| Meter | m | Room dimensions, athletic distances, building heights |
| Millimeter | mm | Engineering tolerances, precision component sizing |
| Foot | ft | Human height, building floors, ceiling heights |
| Yard | yd | Fabric and textile measurement, US outdoor distances |
Inches to Centimeters Conversion Table
| Inches [in] | Centimeters [cm] |
|---|---|
| 1 in | 2.54 cm |
| 3 in | 7.62 cm |
| 6 in | 15.24 cm |
| 12 in | 30.48 cm |
| 18 in | 45.72 cm |
| 24 in | 60.96 cm |
| 36 in | 91.44 cm |
| 48 in | 121.92 cm |
| 60 in | 152.40 cm |
| 72 in | 182.88 cm |
How to Convert Inches to Centimeters
To convert inches to centimeters, multiply by 2.54:
Example: Convert 15 inches to centimeters:
To convert centimeters back to inches, divide by 2.54:
Example: Convert 50 cm to inches:
When You Need to Convert Inches to Centimeters
Screen and display sizes are specified in inches in US-origin products — a 27-inch monitor, a 65-inch TV, a 6.7-inch phone. Shoppers in metric countries need the centimeter equivalent to understand the physical size: a 27-inch monitor has a diagonal of 68.58 cm, a useful figure for comparing desk setups or IKEA desk measurements.
Sewing and textile work crosses borders constantly. American commercial sewing patterns list seam allowances and cutting dimensions in inches. European couture patterns use centimeters. A seamstress following a mixed-origin pattern — say, a US body measurement chart with a French construction guide — needs to convert individual dimensions accurately, since a 0.5-inch seam is 1.27 cm, not 1.25 or 1.3.
Hardware and furniture assembly from US and European manufacturers also mixes both systems. A shelf bracket specified as 12 inches deep fits a 30.48 cm wall cavity — not exactly 30 cm. Getting these conversions right prevents mis-cuts and returns, particularly in kitchen and bathroom fitting where tolerance is tight.