Inches (in)
0
Equivalent length
Accurate length conversion tool for centimetres and inches
Convert centimetres to inches instantly with precise calculations. Includes bidirectional conversion and detailed length breakdowns for everyday use, fashion, construction, and engineering in 2026.
Professional length conversion for fashion, construction, engineering, and everyday use
Convert centimetres to inches using the exact international conversion factor: 1 inch = 2.54 centimetres exactly. This is a defined, precise relationship — not an approximation — making every result completely accurate regardless of the value entered.
Switch seamlessly between centimetres to inches and inches to centimetres conversion modes. Results are also displayed in millimetres, metres, feet, and yards so you get a complete picture of your measurement in all common length units from a single input.
Essential for clothing and shoe sizing, screen size comparisons, furniture dimensions, height conversion, technical drawings, and any task where metric and imperial length units must be reconciled. One of the most frequently used unit conversions globally in 2026.
Select conversion direction and enter your length value below
The centimetre (cm) is a metric unit of length equal to one hundredth of a metre, used as the standard length unit in most countries worldwide. The inch (in) is an imperial unit used primarily in the United States, United Kingdom, and Canada, defined as exactly 2.54 centimetres since 1959 under the international yard and pound agreement. This makes the conversion between centimetres and inches perfectly precise — no estimation involved.
To convert centimetres to inches, divide by 2.54. To convert inches to centimetres, multiply by 2.54. This conversion underpins everyday tasks from measuring land and construction dimensions to reading clothing size charts, comparing screen sizes, and interpreting technical specifications from different countries. Knowing this single factor unlocks accurate bidirectional length conversion.
All values represent the same length — 1 inch — expressed in different measurement units.
Use this quick-reference table for common centimetres to inches conversions. All values use the exact factor of 1 inch = 2.54 cm and are rounded to 4 decimal places for practical use.
| Centimetres (cm) | Inches (in) | Feet (ft) | Millimetres (mm) | Metres (m) |
|---|---|---|---|---|
| 1 cm | 0.3937 in | 0.0328 ft | 10 mm | 0.01 m |
| 2.54 cm | 1.0000 in | 0.0833 ft | 25.4 mm | 0.0254 m |
| 5 cm | 1.9685 in | 0.1640 ft | 50 mm | 0.05 m |
| 10 cm | 3.9370 in | 0.3281 ft | 100 mm | 0.1 m |
| 15 cm | 5.9055 in | 0.4921 ft | 150 mm | 0.15 m |
| 20 cm | 7.8740 in | 0.6562 ft | 200 mm | 0.2 m |
| 30 cm | 11.8110 in | 0.9843 ft | 300 mm | 0.3 m |
| 50 cm | 19.6850 in | 1.6404 ft | 500 mm | 0.5 m |
| 100 cm | 39.3701 in | 3.2808 ft | 1,000 mm | 1.0 m |
| 180 cm | 70.8661 in | 5.9055 ft | 1,800 mm | 1.8 m |
Since 1 inch = 2.54 cm exactly, converting centimetres to inches requires a single division. Divide the number of centimetres by 2.54 to get the equivalent in inches. This is one of the simplest and most commonly performed unit conversions, used daily in clothing, carpentry, screen sizes, and medical measurements worldwide.
To convert inches back to centimetres, multiply by 2.54. For example, 24 inches × 2.54 = 60.96 cm. This reverse calculation is used whenever you encounter specifications in inches — such as TV screen diagonals, monitor sizes, or US clothing dimensions — and need to compare them in metric. Visit our area conversion tools for related imperial-to-metric calculations.
Clothing sizes vary between metric and imperial systems worldwide. Waist, chest, and inseam measurements are given in centimetres in Europe and Australia but in inches in the US and UK. Accurate cm to inch conversion is essential for online shopping, tailoring, and international garment sizing in 2026.
TV, monitor, tablet, and phone screen sizes are universally quoted in inches (diagonal measurement) regardless of country. When technical specs list screen dimensions in centimetres, converting to inches allows accurate comparison with advertised sizes and compatibility with standard mounting hardware.
Furniture, room dimensions, and fittings are measured in centimetres across most of the world, while many product catalogues and hardware specifications still use inches. Converting between the two is a daily requirement for interior designers, builders, and DIY homeowners sourcing products from international suppliers.
Engineering drawings and technical datasheets may use either cm or inches depending on the country of origin. Mechanical engineers, architects, and machinists regularly convert between the two systems when sourcing components, reading international standards, or collaborating on multinational projects.
Patient height and wound measurements are recorded in centimetres in most medical systems globally, but US medical records commonly use inches and feet. Healthcare professionals working internationally or interpreting US medical literature routinely convert cm to inches for accurate patient assessment and record keeping.
Photo print sizes such as 4×6 and 8×10 are expressed in inches in the US while European paper sizes use centimetres or millimetres. Photographers, graphic designers, and print professionals must accurately convert between centimetres and inches when preparing artwork for different markets and print suppliers.
The International Bureau of Weights and Measures (BIPM) maintains official SI unit definitions including the metre and centimetre. The 1959 international agreement fixing 1 inch = 2.54 cm exactly is the foundation of all modern centimetre-to-inch conversions.
Visit BIPM →Explore our full range of free unit converters covering volume, area, pressure, energy, and time. All tools are mobile-friendly, free to use, and updated with accurate conversion factors and full breakdowns for 2026.
More Converters →The US National Institute of Standards and Technology (NIST) publishes official imperial and metric unit definitions. The inch is legally defined as 25.4 mm = 2.54 cm under NIST standards, confirming the exact conversion factor used by our tool.
Visit NIST →