Convert UK gallons per second to Cubic metres per second
Convert UK gallons per second (gal/s) to Cubic metres per second (m³/s) instantly and accurately.
Conversion Formula
m³/s = gal/s × 0.00454609
About UK gallons per second
The UK (imperial) gallon per second (gal/s) equals 4.54609×10⁻³ m³/s, about 20% larger than the US gallon per second. It appears in pre-metric British fire-fighting standards, large pump test certificates, and naval engineering calculations. A UK fire engine pump rated 1 000 UK gal/min delivers ≈16.67 UK gal/s. 1 UK gal/s = 4.54609×10⁻³ m³/s ≈ 1.201 US gal/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 second (gal/s) | Cubic metres per second (m³/s) |
|---|---|
| 1 gal/s | 0.00454609 m³/s |
| 2 gal/s | 0.00909218 m³/s |
| 5 gal/s | 0.0227304 m³/s |
| 10 gal/s | 0.0454609 m³/s |
| 25 gal/s | 0.113652 m³/s |
| 50 gal/s | 0.227304 m³/s |
| 100 gal/s | 0.454609 m³/s |