Convert cm to in
A practical reference for converting centimeters (cm) to inches (in), a length unit. Type any value for an instant result, or use the reference table below.
1 cm = 0.393701 in
in = cm × 0.3937007874
Conversion formula
in = cm × 0.3937007874For a quick estimate, divide centimeters by 2.5. 170 cm is roughly 67 inches.
Quick reference table
| centimeters | inches |
|---|---|
| 1 cm | 0.3937 in |
| 2 cm | 0.7874 in |
| 5 cm | 1.9685 in |
| 10 cm | 3.937 in |
| 15 cm | 5.9055 in |
| 20 cm | 7.874 in |
| 30 cm | 11.811 in |
| 50 cm | 19.685 in |
| 100 cm | 39.3701 in |
| 170 cm | 66.9291 in |
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Open Unit ConverterFrequently asked questions
How many in is 1 cm?
1 cm equals 0.393701 in.
Why does my result differ slightly from other sites?
Rounding. This page displays four decimal places while the underlying calculation keeps full precision.
Is my input sent to a server?
No. Every calculation runs locally in your browser and nothing is transmitted.
All calculations on this page run in your browser. Your input is never sent to a server.