Convert Square metres per second to Square millimetres per hour
Convert Square metres per second (m²/s) to Square millimetres per hour (mm²/h) instantly and accurately.
Conversion Formula
mm²/h = m²/s × 3600000000
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.
About Square millimetres per hour
The square millimetre per hour (mm²/h) equals 1/(3.6 × 10⁹) m²/s ≈ 2.78 × 10⁻¹⁰ m²/s. It appears in materials science for solid-state diffusion and thin-film growth studies where hourly timescales are more natural than seconds. 1 mm²/h = 1/3600 mm²/s = 1/3600 cSt.
Quick Reference Table
| Square metres per second (m²/s) | Square millimetres per hour (mm²/h) |
|---|---|
| 1 m²/s | 3.6 × 109 mm²/h |
| 2 m²/s | 7.2 × 109 mm²/h |
| 5 m²/s | 1.8 × 1010 mm²/h |
| 10 m²/s | 3.6 × 1010 mm²/h |
| 25 m²/s | 9 × 1010 mm²/h |
| 50 m²/s | 1.8 × 1011 mm²/h |
| 100 m²/s | 3.6 × 1011 mm²/h |