Convert US gallons per hour to Cubic inches per second
Convert US gallons per hour (gph) to Cubic inches per second (in³/s) instantly and accurately.
Conversion Formula
in³/s = gph × 0.06416666667
About US gallons per hour
The US gallon per hour (gph) equals 3.785411784×10⁻³/3600 ≈ 1.051×10⁻⁶ m³/s, common in oil-burner nozzle ratings, water-softener regeneration, and RV/marine-plumbing specifications. Residential oil-burner nozzles are rated in gph (e.g., 0.75 gph, 1.00 gph); a small boat bilge pump might handle 200-500 gph. 1 US gph ≈ 1.052×10⁻⁶ m³/s ≈ 3.785 L/h.
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.
Quick Reference Table
| US gallons per hour (gph) | Cubic inches per second (in³/s) |
|---|---|
| 1 gph | 0.0641667 in³/s |
| 2 gph | 0.128333 in³/s |
| 5 gph | 0.320833 in³/s |
| 10 gph | 0.641667 in³/s |
| 25 gph | 1.60417 in³/s |
| 50 gph | 3.20833 in³/s |
| 100 gph | 6.41667 in³/s |