Convert Square feet per second to Square inches per hour
Convert Square feet per second (ft²/s) to Square inches per hour (in²/h) instantly and accurately.
Conversion Formula
in²/h = ft²/s × 518400
About Square feet per second
The square foot per second (ft²/s) equals 0.3048² = 0.09290304 m²/s. It is the coherent FPS kinematic viscosity unit, used in US aerospace, hydraulic machinery, and civil/coastal engineering. Water at 20 °C ≈ 1.082 × 10⁻⁵ ft²/s; air at 20 °C ≈ 1.632 × 10⁻⁴ ft²/s. 1 ft²/s ≈ 92903 cSt.
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
| Square feet per second (ft²/s) | Square inches per hour (in²/h) |
|---|---|
| 1 ft²/s | 518400 in²/h |
| 2 ft²/s | 1036800 in²/h |
| 5 ft²/s | 2592000 in²/h |
| 10 ft²/s | 5184000 in²/h |
| 25 ft²/s | 12960000 in²/h |
| 50 ft²/s | 25920000 in²/h |
| 100 ft²/s | 51840000 in²/h |