Convert Square inches per second to Square feet per minute
Convert Square inches per second (in²/s) to Square feet per minute (ft²/min) instantly and accurately.
Conversion Formula
ft²/min = in²/s × 0.4166666667
About Square inches per second
The square inch per second (in²/s) equals 0.0254² = 6.4516 × 10⁻⁴ m²/s. It is the coherent FPS kinematic unit based on the inch, found in US fluid power, hydraulics, and bearing-design references. 1 in²/s = 645.16 cSt = 6.4516 St.
About Square feet per minute
The square foot per minute (ft²/min) equals 0.3048²/60 ≈ 1.548 × 10⁻³ m²/s. It appears in US HVAC, ventilation, and turbine-cooling design where velocities are quoted in ft/min. 1 ft²/min ≈ 1548 cSt.
Quick Reference Table
| Square inches per second (in²/s) | Square feet per minute (ft²/min) |
|---|---|
| 1 in²/s | 0.416667 ft²/min |
| 2 in²/s | 0.833333 ft²/min |
| 5 in²/s | 2.08333 ft²/min |
| 10 in²/s | 4.16667 ft²/min |
| 25 in²/s | 10.4167 ft²/min |
| 50 in²/s | 20.8333 ft²/min |
| 100 in²/s | 41.6667 ft²/min |