Square Inch/Second to Square Meter/Second Converter

Kinematic Viscosity Converter

6 units available

Decimals:

From

To

0.000645

1 in²/s = 0.000645 m²/s

Formula:

m²/s = in²/s × 0.00064516

With your value: 1 in²/s = 0.00064516 m²/s

Other Square Inch/Second to Square Meter/Second conversions

2 in²/s to m²/s 3 in²/s to m²/s 4 in²/s to m²/s 5 in²/s to m²/s 6 in²/s to m²/s 7 in²/s to m²/s 8 in²/s to m²/s

Square Inch/Second to Square Meter/Second Conversion Table

Square Inch/Second (in²/s)	Square Meter/Second (m²/s)
0.5	0.000323
1	0.000645
2	0.00129
5	0.003226
10	0.006452
15	0.009677
20	0.012903
25	0.016129
50	0.032258
100	0.064516
250	0.16129
500	0.32258
1000	0.64516

Square Meter/Second to Square Inch/Second Conversion Table

Square Meter/Second (m²/s)	Square Inch/Second (in²/s)
0.5	775.00155
1	1,550.0031
2	3,100.0062
5	7,750.0155
10	15,500.031
15	23,250.0465
20	31,000.062
25	38,750.0775
50	77,500.155
100	155,000.310001
250	387,500.775002
500	775,001.550003
1000	1,550,003.100006

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.

Square Inch/Second (in²/s)

Kinematic Viscosity

Exact conversion

Derived quantity, square metre per second (m²/s). The stokes is exactly 10⁻⁴ m²/s by CGS definition.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Square Meter/Second (m²/s)

Kinematic Viscosity

Exact conversion

Derived quantity, square metre per second (m²/s). The stokes is exactly 10⁻⁴ m²/s by CGS definition.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Square Inch/Second to Square Meter/Second

To convert from Square Inch/Second (in²/s) to Square Meter/Second (m²/s), multiply the value by 0.00064516.

Formula: m²/s = in²/s × 0.00064516

Reverse: in²/s = m²/s × 1,550.0031000062

Step-by-Step Example

Start with your value in Square Inch/Second. For example: 5 in²/s
Multiply by the conversion factor: 5 x 0.00064516
The result is: 0.003226 m²/s

About Square Inch/Second

The square inch/second (in²/s) is a unit of kinematic viscosity. One square inch/second equals 0.00064516 base units. UnitConvertLab converts it against every other kinematic viscosity unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: kinematic viscosity calculations, engineering and science, education.

About Square Meter/Second

The square meter/second (m²/s) is a unit of kinematic viscosity. One square meter/second equals 1 base unit. UnitConvertLab converts it against every other kinematic viscosity unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: kinematic viscosity calculations, engineering and science, education.

Frequently Asked Questions

How many Square Meter/Second are in 1 Square Inch/Second?

There are exactly 0.00064516 Square Meter/Second in 1 Square Inch/Second. This means the conversion factor from Square Inch/Second to Square Meter/Second is 0.00064516.

What is the formula to convert Square Inch/Second to Square Meter/Second?

The formula to convert Square Inch/Second to Square Meter/Second is: m²/s = in²/s × 0.00064516. For example, to convert 10 Square Inch/Second to Square Meter/Second, you would multiply 10 by 0.00064516.

What is a Square Inch/Second?