Convert Square feet per hour to Centistokes
Convert Square feet per hour (ft²/h) to Centistokes (cSt) instantly and accurately.
Conversion Formula
cSt = ft²/h × 25.8064
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 Centistokes
The centistoke (cSt) equals 10⁻⁶ m²/s = 1 mm²/s. It is the dominant unit for kinematic viscosity in industry worldwide. ASTM D445, ISO 3104, and ACEA lubricant specifications all use cSt. Water at 20 °C ≈ 1.004 cSt; diesel at 40 °C: 2.0-4.5 cSt; SAE 40 oil at 100 °C: 12.5-16.3 cSt. 1 cSt = 10⁻² St.
Quick Reference Table
| Square feet per hour (ft²/h) | Centistokes (cSt) |
|---|---|
| 1 ft²/h | 25.8064 cSt |
| 2 ft²/h | 51.6128 cSt |
| 5 ft²/h | 129.032 cSt |
| 10 ft²/h | 258.064 cSt |
| 25 ft²/h | 645.16 cSt |
| 50 ft²/h | 1290.32 cSt |
| 100 ft²/h | 2580.64 cSt |