Centimeters to Inches Converter
Convert centimeters to inches instantly — formula shown, chart included, and everything runs in your browser.
| Unit | Value |
|---|---|
| Millimeters (mm) | 10 |
| Meters (m) | 0.01 |
| Kilometers (km) | 0.00001 |
| Inches (in) | 0.393701 |
| Feet (ft) | 0.032808 |
| Yards (yd) | 0.010936 |
| Miles (mi) | 0.000006 |
Worked examples
| A 55 cm carry-on suitcase | 55 ÷ 2.54 = 21.7 in — just under most US 22-inch carry-on limits |
| 180 cm of height | 180 ÷ 2.54 = 70.9 in = 5 ft 10.9 in |
| A 21 cm dinner plate | 21 ÷ 2.54 = 8.3 in |
Centimeters to Inches conversion chart
| Centimeters (cm) | Inches (in) |
|---|---|
| 1 | 0.393701 |
| 2 | 0.787402 |
| 5 | 1.9685 |
| 10 | 3.937 |
| 15 | 5.9055 |
| 20 | 7.874 |
| 30 | 11.811 |
| 50 | 19.685 |
| 100 | 39.3701 |
| 170 | 66.9291 |
| 180 | 70.8661 |
| 200 | 78.7402 |
Need other units? The full Unit Converter covers length, weight, volume, area, temperature, and speed.
How to use this tool
- Type your centimeters value — the inches result appears instantly.
- Converting the other way (inches to centimeters)? Press the swap button — this page works in both directions.
- Use the chart below for common values you can reference without typing.
How it works
Centimeters-to-inches is the conversion Americans hit most when reading international product listings: European clothing sizes, furniture from overseas retailers, laptop and TV screens (a "39 cm" screen is about 15.4 inches), and height on foreign documents. One inch is defined as exactly 2.54 cm — an international agreement from 1959 — so dividing centimeters by 2.54 is exact, not approximate.
Two mental shortcuts: 10 cm is close to 4 inches (3.94), and 30 cm is close to a foot (11.8 inches). For height, 170 cm is 66.9 inches — 5 feet 7 — and each additional 2.5 cm adds roughly one inch.
1 cm = 0.393701 in — multiply your centimeters value by 0.393701. For example, 10 Centimeters (cm) = 3.937 Inches (in). The factor is exact by definition, so results are as precise as your input.
Frequently asked questions
How do I convert centimeters to inches?
1 cm = 0.393701 in — multiply your centimeters value by 0.393701. Or skip the math: the converter above and the chart below cover it.
What is 10 centimeters in inches?
10 centimeters equals 3.937 inches.
Can I convert inches back to centimeters?
Yes — use the swap (⇄) button in the converter above, and it flips the direction instantly.