Convert Square inches per minute to Square feet per second
Convert Square inches per minute (in²/min) to Square feet per second (ft²/s) instantly and accurately.
Conversion Formula
ft²/s = in²/min × 0.0001157407407
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.
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.
Quick Reference Table
| Square inches per minute (in²/min) | Square feet per second (ft²/s) |
|---|---|
| 1 in²/min | 0.000115741 ft²/s |
| 2 in²/min | 0.000231481 ft²/s |
| 5 in²/min | 0.000578704 ft²/s |
| 10 in²/min | 0.00115741 ft²/s |
| 25 in²/min | 0.00289352 ft²/s |
| 50 in²/min | 0.00578704 ft²/s |
| 100 in²/min | 0.0115741 ft²/s |