Convert US gallons per hour to Cubic yards per second
Convert US gallons per hour (gph) to Cubic yards per second (yd³/s) instantly and accurately.
Conversion Formula
yd³/s = gph × 1.375314358e-6
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 yards per second
The cubic yard per second (yd³/s) equals 0.764554857984 m³/s, a large unit used in US civil engineering for river flood-stage measurements and reservoir emergency-spillway capacity. A major dam spillway releasing water at 1 000 yd³/s could drain an Olympic pool in about 3 seconds. 1 yd³/s = 0.764554857984 m³/s ≈ 764.555 L/s ≈ 27 ft³/s.
Quick Reference Table
| US gallons per hour (gph) | Cubic yards per second (yd³/s) |
|---|---|
| 1 gph | 1.375 × 10-6 yd³/s |
| 2 gph | 2.751 × 10-6 yd³/s |
| 5 gph | 6.877 × 10-6 yd³/s |
| 10 gph | 1.375 × 10-5 yd³/s |
| 25 gph | 3.438 × 10-5 yd³/s |
| 50 gph | 6.877 × 10-5 yd³/s |
| 100 gph | 0.000137531 yd³/s |