Length conversion

Convert Centimeter to Inch

1 centimeter (cm) equals 0.393700787402 inch (in). Enter any value below to convert from cm to in.

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1 cm = 0.3937007874 in

All Length units

From 1 cm
UnitValue
Meter m 0.01
Kilometer km 0.00001
Centimeter cm 1
Millimeter mm 10
Micrometer μm 10,000
Nanometer nm 10,000,000
Inch in 0.3937007874
Foot ft 0.032808399
Yard yd 0.010936133
Mile mi 0.0000062137
Nautical mile nmi 0.0000053996
Light-year ly 1.057000834e-18
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Formula

cm to in conversion formula

Use this relationship for a direct conversion:

in = cm x 0.393700787402

Worked example

2 cm = 0.7874015748 in.

Metric factors and international inch, foot, yard, mile, and nautical mile definitions are exact.

Quick reference

Centimeter to Inch table

Centimeter (cm)Inch (in)
0.010.0039370079
0.10.0393700787
10.3937007874
20.7874015748
51.968503937
103.937007874
259.842519685
5019.6850393701
10039.3700787402
1,000393.7007874016

From unit

About the centimeter

One hundredth of a meter.

Symbol: cm

To unit

About the inch

Exactly 25.4 millimeters by international agreement.

Symbol: in

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Source

Conversion standard

Definitions are checked against NIST SP 811: Guide for the Use of the SI. Calculations use full internal precision before display rounding.

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Questions

cm to in FAQ

How do you convert centimeter to inch?

Use the formula in = cm x 0.393700787402. 1 centimeter (cm) equals 0.393700787402 inch (in).

Is the cm to in conversion exact?

Both unit definitions use exact factors. Only the displayed decimal may be rounded.