Centimeter/Second to Inch/Second Converter

Speed Converter

18 units available

Decimals:

From

To

0.393701

1 cm/s = 0.393701 in/s

Formula:

in/s = cm/s × 0.3937007874

With your value: 1 cm/s = 0.39370079 in/s

How big is that?

Everyday references on a logarithmic scale, all expressed in centimeter/second so you can sanity-check the result.

Your value1.00 cm/s

Walking pace (1.4e+2× your value)140 cm/s

Cycling (5.5e+2× your value)550 cm/s

Urban speed limit (50 km/h) (1.4e+3× your value)1.39e+3 cm/s

Cheetah sprint (2.9e+3× your value)2.90e+3 cm/s

Motorway (110 km/h) (3.1e+3× your value)3.06e+3 cm/s

Other Centimeter/Second to Inch/Second conversions

2 cm/s to in/s 3 cm/s to in/s 4 cm/s to in/s 5 cm/s to in/s 6 cm/s to in/s 7 cm/s to in/s 8 cm/s to in/s

Centimeter/Second to Inch/Second Conversion Table

Centimeter/Second (cm/s)	Inch/Second (in/s)
0.5	0.19685
1	0.393701
2	0.787402
5	1.968504
10	3.937008
15	5.905512
20	7.874016
25	9.84252
50	19.685039
100	39.370079
250	98.425197
500	196.850394
1000	393.700787

Inch/Second to Centimeter/Second Conversion Table

Inch/Second (in/s)	Centimeter/Second (cm/s)
0.5	1.27
1	2.54
2	5.08
5	12.7
10	25.4
15	38.1
20	50.8
25	63.5
50	127
100	254
250	635
500	1,270
1000	2,540

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Centimeter/Second (cm/s)

Speed

Exact conversion

Derived quantity: a defined length divided by a defined time interval.

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

Inch/Second (in/s)

Speed

Exact conversion

Derived quantity: a defined length divided by a defined time interval.

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

How to Convert Centimeter/Second to Inch/Second

To convert from Centimeter/Second (cm/s) to Inch/Second (in/s), multiply the value by 0.3937007874.

Formula: in/s = cm/s × 0.3937007874

Reverse: cm/s = in/s × 2.54

Step-by-Step Example

Start with your value in Centimeter/Second. For example: 5 cm/s
Multiply by the conversion factor: 5 x 0.3937007874
The result is: 1.968504 in/s

About Centimeter/Second

The centimeter/second (cm/s) is a unit of speed and velocity. One centimeter/second equals 0.01 metre per seconds. UnitConvertLab converts it against every other speed unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: speed calculations, engineering and science, education.

About Inch/Second

The inch/second (in/s) is a unit of speed and velocity. One inch/second equals 0.0254 metre per seconds. UnitConvertLab converts it against every other speed unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: speed calculations, engineering and science, education.

Frequently Asked Questions

How many Inch/Second are in 1 Centimeter/Second?

There are exactly 0.3937007874 Inch/Second in 1 Centimeter/Second. This means the conversion factor from Centimeter/Second to Inch/Second is 0.3937007874.

What is the formula to convert Centimeter/Second to Inch/Second?

The formula to convert Centimeter/Second to Inch/Second is: in/s = cm/s × 0.3937007874. For example, to convert 10 Centimeter/Second to Inch/Second, you would multiply 10 by 0.3937007874.

What is a Centimeter/Second?