Convert Cubic inches per second to Cubic feet per second
Convert Cubic inches per second (in³/s) to Cubic feet per second (ft³/s) instantly and accurately.
Conversion Formula
ft³/s = in³/s × 0.0005787037037
About Cubic inches per second
The cubic inch per second (in³/s) equals 1.6387064×10⁻⁵ m³/s, used in US automotive engineering for engine displacement sweep rate, fuel-injector calibration, and hydraulic actuator speed specifications. An engine injector delivering 15 in³/s of fuel corresponds to roughly 15.5 mL/s; hydraulic jacks in US equipment are rated in in³/s at operating pressure. 1 in³/s ≈ 1.639×10⁻⁵ m³/s = 0.016387 L/s.
About Cubic feet per second
The cubic foot per second (ft³/s or cfs) equals 0.028316846592 m³/s, the primary unit for measuring river discharge and open-channel flow in the United States. The US Geological Survey publishes all streamflow data in cfs; irrigation water rights, flood-control gates, and dam spillway capacities are specified in cfs. The Colorado River at full natural flow is ≈22 000 cfs. 1 cfs = 0.028316846592 m³/s ≈ 28.317 L/s ≈ 448.8 US gpm.
Quick Reference Table
| Cubic inches per second (in³/s) | Cubic feet per second (ft³/s) |
|---|---|
| 1 in³/s | 0.000578704 ft³/s |
| 2 in³/s | 0.00115741 ft³/s |
| 5 in³/s | 0.00289352 ft³/s |
| 10 in³/s | 0.00578704 ft³/s |
| 25 in³/s | 0.0144676 ft³/s |
| 50 in³/s | 0.0289352 ft³/s |
| 100 in³/s | 0.0578704 ft³/s |