Convert Square inches per second to Square metres per second
Convert Square inches per second (in²/s) to Square metres per second (m²/s) instantly and accurately.
Conversion Formula
m²/s = in²/s × 0.00064516
About Square inches per second
The square inch per second (in²/s) equals 0.0254² = 6.4516 × 10⁻⁴ m²/s. It is the coherent FPS kinematic unit based on the inch, found in US fluid power, hydraulics, and bearing-design references. 1 in²/s = 645.16 cSt = 6.4516 St.
About Square metres per second
The square metre per second (m²/s) is the SI coherent unit of kinematic viscosity (ν = μ/ρ). Air at 20 °C ≈ 1.516 × 10⁻⁵ m²/s; water at 20 °C ≈ 1.004 × 10⁻⁶ m²/s; glycerol ≈ 1.19 × 10⁻³ m²/s. It is the standard in CFD codes and SI research literature. 1 m²/s = 10⁴ St = 10⁶ cSt.
Quick Reference Table
| Square inches per second (in²/s) | Square metres per second (m²/s) |
|---|---|
| 1 in²/s | 0.00064516 m²/s |
| 2 in²/s | 0.00129032 m²/s |
| 5 in²/s | 0.0032258 m²/s |
| 10 in²/s | 0.0064516 m²/s |
| 25 in²/s | 0.016129 m²/s |
| 50 in²/s | 0.032258 m²/s |
| 100 in²/s | 0.064516 m²/s |