Convert Centistokes to Square inches per hour
Convert Centistokes (cSt) to Square inches per hour (in²/h) instantly and accurately.
Conversion Formula
in²/h = cSt × 5.58001116
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.
About Square inches per hour
The square inch per hour (in²/h) equals 0.0254²/3600 ≈ 1.792 × 10⁻⁷ m²/s. It is found in US heat-transfer and diffusion textbooks that use the BTU-inch-hour unit system alongside thermal diffusivity tables. 1 in²/h ≈ 0.1792 cSt.
Quick Reference Table
| Centistokes (cSt) | Square inches per hour (in²/h) |
|---|---|
| 1 cSt | 5.58001 in²/h |
| 2 cSt | 11.16 in²/h |
| 5 cSt | 27.9001 in²/h |
| 10 cSt | 55.8001 in²/h |
| 25 cSt | 139.5 in²/h |
| 50 cSt | 279.001 in²/h |
| 100 cSt | 558.001 in²/h |