Convert UK gallons per hour to Cubic metres per second
Convert UK gallons per hour (gph) to Cubic metres per second (m³/s) instantly and accurately.
Conversion Formula
m³/s = gph × 1.262802778e-6
About UK gallons per hour
The UK gallon per hour (gph) equals 4.54609×10⁻³/3600 ≈ 1.263×10⁻⁶ m³/s, found in pre-metric British burner-nozzle ratings, oil-consumption logs for diesel generators, and ship fuel-economy records. British aviation fuel consumption was once published in UK gal/h; legacy Lloyd's Register tanker descriptions used UK gal/h for cargo pump capacities. 1 UK gph ≈ 1.263×10⁻⁶ m³/s.
About Cubic metres per second
The cubic metre per second (m³/s) is the SI coherent unit of volumetric flow rate. It is used for large river discharges, turbine inlet flows, and major pipeline capacities. The Amazon River at its mouth averages ≈200 000 m³/s; a large hydroelectric turbine passes 400-800 m³/s; a major municipal water-main carries 5-20 m³/s. 1 m³/s = 1 000 L/s ≈ 15 850 US gal/min = 35.315 ft³/s.
Quick Reference Table
| UK gallons per hour (gph) | Cubic metres per second (m³/s) |
|---|---|
| 1 gph | 1.263 × 10-6 m³/s |
| 2 gph | 2.526 × 10-6 m³/s |
| 5 gph | 6.314 × 10-6 m³/s |
| 10 gph | 1.263 × 10-5 m³/s |
| 25 gph | 3.157 × 10-5 m³/s |
| 50 gph | 6.314 × 10-5 m³/s |
| 100 gph | 0.00012628 m³/s |