Convert Square inches per hour to Square inches per second
Convert Square inches per hour (in²/h) to Square inches per second (in²/s) instantly and accurately.
Conversion Formula
in²/s = in²/h × 0.0002777777778
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.
About Square inches per second
The square inch per second (in²/s) equals 0.0254² = 6.4516 × 10⁻⁴ m²/s. It is the coherent FPS kinematic unit based on the inch, found in US fluid power, hydraulics, and bearing-design references. 1 in²/s = 645.16 cSt = 6.4516 St.
Quick Reference Table
| Square inches per hour (in²/h) | Square inches per second (in²/s) |
|---|---|
| 1 in²/h | 0.000277778 in²/s |
| 2 in²/h | 0.000555556 in²/s |
| 5 in²/h | 0.00138889 in²/s |
| 10 in²/h | 0.00277778 in²/s |
| 25 in²/h | 0.00694444 in²/s |
| 50 in²/h | 0.0138889 in²/s |
| 100 in²/h | 0.0277778 in²/s |