Centimeters to Inches Converter
Convert centimeters to inches instantly. Exact formula, quick chart and examples. Free, no signup.
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About the Centimeters to Inches Converter
This free centimeters to inches converter gives the exact result as you type, with no button to press and no signup. It is built for everyday use in the US: recipes, travel, fitness, weather, school work and shopping. The formula and a quick reference chart are included below so you can check the math yourself.
Need the opposite direction? Use the Inches to Centimeters converter.
How to use it
- Type the number of centimeters in the first box.
- Read the result in inches immediately below.
- Use the chart on this page for common values you can check at a glance.
Centimeters to Inches formula
inches = cm ÷ 2.54 (or cm × 0.393701)
Example: 170 cm × conversion = 66.929 in.
Quick mental estimate: multiply centimeters by 0.4. 50 cm is about 20 inches (exact: 19.69 in). For height, divide by 2.54 and convert the result to feet and inches.
cm to in chart
| Centimeters (cm) | Inches (in) |
|---|---|
| 1 cm | 0.394 in |
| 2 cm | 0.787 in |
| 5 cm | 1.969 in |
| 10 cm | 3.937 in |
| 15 cm | 5.906 in |
| 20 cm | 7.874 in |
| 30 cm | 11.811 in |
| 50 cm | 19.685 in |
| 100 cm | 39.37 in |
| 150 cm | 59.055 in |
| 160 cm | 62.992 in |
| 170 cm | 66.929 in |
| 180 cm | 70.866 in |
| 190 cm | 74.803 in |
in to cm reverse chart
Going the other way? These are the same values read backwards.
| Inches (in) | Centimeters (cm) |
|---|---|
| 0.394 in | 1 cm |
| 0.787 in | 2 cm |
| 1.969 in | 5 cm |
| 3.937 in | 10 cm |
| 5.906 in | 15 cm |
| 7.874 in | 20 cm |
| 11.811 in | 30 cm |
| 19.685 in | 50 cm |
| 39.37 in | 100 cm |
| 59.055 in | 150 cm |
| 62.992 in | 160 cm |
| 66.929 in | 170 cm |
| 70.866 in | 180 cm |
| 74.803 in | 190 cm |
About centimeters and inches
A centimeter is one hundredth of a meter and equals about 0.393701 inches, since 1 inch is exactly 2.54 cm. The conversion is used for height, clothing sizes, screen sizes and product dimensions listed in metric.
Common uses
- Height and body measurements in cm.
- Product and packaging dimensions.
- School work and craft projects.
Frequently asked questions
How many inches is 1 cm?
1 centimeter is 0.3937 inches.
How many inches is 170 cm?
170 cm is 66.93 inches, or 5 ft 6.9 in.
How many inches is 180 cm?
180 cm is 70.87 inches, or 5 ft 10.9 in.
How many inches is 100 cm?
100 cm (1 meter) is 39.37 inches.
What is the formula to convert centimeters to inches?
inches = cm ÷ 2.54 (or cm × 0.393701). This page applies it for you instantly as you type.
Last reviewed: November 2026.
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