Convert Square millimetres per hour to Square feet per minute
Convert Square millimetres per hour (mm²/h) to Square feet per minute (ft²/min) instantly and accurately.
Conversion Formula
ft²/min = mm²/h × 1.793985069e-7
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.
About Square feet per minute
The square foot per minute (ft²/min) equals 0.3048²/60 ≈ 1.548 × 10⁻³ m²/s. It appears in US HVAC, ventilation, and turbine-cooling design where velocities are quoted in ft/min. 1 ft²/min ≈ 1548 cSt.
Quick Reference Table
| Square millimetres per hour (mm²/h) | Square feet per minute (ft²/min) |
|---|---|
| 1 mm²/h | 1.794 × 10-7 ft²/min |
| 2 mm²/h | 3.588 × 10-7 ft²/min |
| 5 mm²/h | 8.97 × 10-7 ft²/min |
| 10 mm²/h | 1.794 × 10-6 ft²/min |
| 25 mm²/h | 4.485 × 10-6 ft²/min |
| 50 mm²/h | 8.97 × 10-6 ft²/min |
| 100 mm²/h | 1.794 × 10-5 ft²/min |