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 ≈1.792 × 10⁻⁷ m²/s, used in US heat-transfer handbooks and HVAC insulation specifications. Pre-SI tables for building insulation board and refractory brick often list thermal diffusivity in in²/h. Firebrick: ≈3.5 in²/h; rigid foam: ≈0.8-1.2 in²/h. 1 in²/h = 0.00064516/3600 m²/s.
About Square inches per second
The square inch per second (in²/s) equals 6.4516 × 10⁻⁴ m²/s, used in high-speed thermal analyses such as ballistic impact heating, explosive detonation studies, and rapid induction heating of steel billets. Values for high-conductivity copper alloys reach ≈1-2 in²/s; for mild steel ≈0.3 in²/s. 1 in²/s = 0.00064516 m²/s = 3600 in²/h.
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 |