Inch to Centimeter Converter
Type a value — the answer appears instantly. 1 in = 2.54 cm.
Reviewed by the OmniCalc teamMethod verified 2026-07-01
2.54 centimeters
= 0.0254 m= 0.0833333 ft
equals 2.54 centimetersFormula: cm = in × 2.54
Inch to Centimeter formula
cm = in × 2.54
Convert 5 inches to centimeters
- Start with 5 inches.
- Multiply by the conversion factor: 5 × 2.54 = 12.7.
- So 5 in = 12.7 cm.
Inch to Centimeter conversion table
| Inches (in) | Centimeters (cm) |
|---|---|
| 0.01 in | 0.0254 cm |
| 0.1 in | 0.254 cm |
| 0.25 in | 0.635 cm |
| 0.5 in | 1.27 cm |
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 3 in | 7.62 cm |
| 4 in | 10.16 cm |
| 5 in | 12.7 cm |
| 6 in | 15.24 cm |
| 7 in | 17.78 cm |
| 8 in | 20.32 cm |
| 9 in | 22.86 cm |
| 10 in | 25.4 cm |
| 15 in | 38.1 cm |
| 20 in | 50.8 cm |
| 25 in | 63.5 cm |
| 30 in | 76.2 cm |
| 40 in | 101.6 cm |
| 50 in | 127 cm |
| 75 in | 190.5 cm |
| 100 in | 254 cm |
| 250 in | 635 cm |
| 500 in | 1,270 cm |
| 1,000 in | 2,540 cm |
| 5,000 in | 12,700 cm |
| 10,000 in | 25,400 cm |
Unit definitions
What is a inch?
The inch is an imperial and US customary length unit defined as exactly 0.0254 metres since 1959. It is widely used in the United States and for screen sizes, pipe diameters, and lumber. Twelve inches make one foot.
What is a centimeter?
The centimetre is one hundredth of a metre in the SI system. It is the everyday metric unit for measuring body height, clothing, paper, and small objects across most of the world. One centimetre equals ten millimetres and is roughly the width of an adult fingernail.
Frequently asked questions
How many centimeters are in one inch?
One inch equals 2.54 centimeters (1 in = 2.54 cm).
How do I convert inches to centimeters?
Multiply the value in inches by 2.54. For example, 10 in × 2.54 = 25.4 cm.
Which is bigger — a inch or a centimeter?
A inch is bigger: one inch contains 2.54 centimeters.
Is this inch to centimeter converter free?
Yes — the converter is free, works offline once loaded, and computes instantly in your browser without sending your numbers to a server.
Conversion factors follow international definitions (SI / NIST). Last verified 2026-07-01.