Convert Square feet per second to Square inches per minute
Convert Square feet per second (ft²/s) to Square inches per minute (in²/min) instantly and accurately.
Conversion Formula
in²/min = ft²/s × 8640
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 minute
The square inch per minute (in²/min) equals ≈1.075 × 10⁻⁵ m²/s, found in US military and aerospace specifications for thermal protection materials and ablative heat shields. Some NASA technical reports on reentry vehicle TPS (Thermal Protection System) materials quote diffusivity in in²/min. 1 in²/min = 0.00064516/60 m²/s.
Quick Reference Table
| Square feet per second (ft²/s) | Square inches per minute (in²/min) |
|---|---|
| 1 ft²/s | 8640 in²/min |
| 2 ft²/s | 17280 in²/min |
| 5 ft²/s | 43200 in²/min |
| 10 ft²/s | 86400 in²/min |
| 25 ft²/s | 216000 in²/min |
| 50 ft²/s | 432000 in²/min |
| 100 ft²/s | 864000 in²/min |