Convert Square millimetres per second to Square metres per hour
Convert Square millimetres per second (mm²/s) to Square metres per hour (m²/h) instantly and accurately.
Conversion Formula
m²/h = mm²/s × 0.0036
About Square millimetres per second
The square millimetre per second (mm²/s) equals 10⁻⁶ m²/s, numerically identical to 1 centistoke (cSt). It is the preferred SI-consistent expression: ISO 3104, DIN 51562, and ASTM viscosity standards all use mm²/s interchangeably with cSt. Water at 20 °C ≈ 1.004 mm²/s; SAE 10W-30 at 100 °C: 9.3-12.5 mm²/s. 1 mm²/s = 1 cSt.
About Square metres per hour
The square metre per hour (m²/h) equals 1/3600 m²/s ≈ 277.8 cSt. It is convenient in European process engineering when kinematic viscosity is used alongside metre-based pipe geometry and hourly flow rates. 1 m²/h ≈ 277.8 cSt.
Quick Reference Table
| Square millimetres per second (mm²/s) | Square metres per hour (m²/h) |
|---|---|
| 1 mm²/s | 0.0036 m²/h |
| 2 mm²/s | 0.0072 m²/h |
| 5 mm²/s | 0.018 m²/h |
| 10 mm²/s | 0.036 m²/h |
| 25 mm²/s | 0.09 m²/h |
| 50 mm²/s | 0.18 m²/h |
| 100 mm²/s | 0.36 m²/h |