Convert Square feet per minute to Square inches per second
Convert Square feet per minute (ft²/min) to Square inches per second (in²/s) instantly and accurately.
Conversion Formula
in²/s = ft²/min × 2.4
About Square feet per minute
The square foot per minute (ft²/min) equals ≈1.548 × 10⁻³ m²/s, an uncommon transitional unit appearing in some older US industrial furnace design charts and heat-treatment process sheets where holding times are expressed in minutes. 1 ft²/min = 60 ft²/h = 0.09290304/60 m²/s ≈1.548 × 10⁻³ 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 minute (ft²/min) | Square inches per second (in²/s) |
|---|---|
| 1 ft²/min | 2.4 in²/s |
| 2 ft²/min | 4.8 in²/s |
| 5 ft²/min | 12 in²/s |
| 10 ft²/min | 24 in²/s |
| 25 ft²/min | 60 in²/s |
| 50 ft²/min | 120 in²/s |
| 100 ft²/min | 240 in²/s |