Convert Square feet per second to Square inches per second
Convert Square feet per second (ft²/s) to Square inches per second (in²/s) instantly and accurately.
Conversion Formula
in²/s = ft²/s × 144
About Square feet per second
The square foot per second (ft²/s) equals 0.09290304 m²/s, the imperial base unit for thermal diffusivity analogous to m²/s. It is used in US aerospace engineering and combustion research for highly conductive materials and high-temperature plasmas. Diamond, the most thermally diffusive solid at ≈7 cm²/s, converts to ≈0.0075 ft²/s; silver to ≈0.00167 ft²/s. 1 ft²/s = 3600 ft²/h = 0.09290304 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 feet per second (ft²/s) | Square inches per second (in²/s) |
|---|---|
| 1 ft²/s | 144 in²/s |
| 2 ft²/s | 288 in²/s |
| 5 ft²/s | 720 in²/s |
| 10 ft²/s | 1440 in²/s |
| 25 ft²/s | 3600 in²/s |
| 50 ft²/s | 7200 in²/s |
| 100 ft²/s | 14400 in²/s |