Convert Square feet per hour to Millistokes
Convert Square feet per hour (ft²/h) to Millistokes (mSt) instantly and accurately.
Conversion Formula
mSt = ft²/h × 258.064
About Square feet per hour
The square foot per hour (ft²/h) equals 0.3048²/3600 ≈ 2.581 × 10⁻⁵ m²/s. It is the standard US unit for thermal diffusivity in the BTU-ft-h system, used alongside heat-transfer and mass-transfer calculations. Air at 20 °C ≈ 0.573 ft²/h; water at 20 °C ≈ 0.0096 ft²/h. 1 ft²/h ≈ 25.81 cSt.
About Millistokes
The millistoke (mSt) equals 10⁻⁷ m²/s. It appears in research on low-viscosity solvents, dilute polymer solutions, and light gases whose kinematic viscosity is in the sub-centistoke range. 1 mSt = 10⁻³ St = 0.1 cSt = 10⁻⁷ m²/s.
Quick Reference Table
| Square feet per hour (ft²/h) | Millistokes (mSt) |
|---|---|
| 1 ft²/h | 258.064 mSt |
| 2 ft²/h | 516.128 mSt |
| 5 ft²/h | 1290.32 mSt |
| 10 ft²/h | 2580.64 mSt |
| 25 ft²/h | 6451.6 mSt |
| 50 ft²/h | 12903.2 mSt |
| 100 ft²/h | 25806.4 mSt |