Convert Cubic metres per second to UK gallons per second
Convert Cubic metres per second (m³/s) to UK gallons per second (gal/s) instantly and accurately.
Conversion Formula
gal/s = m³/s × 219.9692483
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.
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.
Quick Reference Table
| Cubic metres per second (m³/s) | UK gallons per second (gal/s) |
|---|---|
| 1 m³/s | 219.969 gal/s |
| 2 m³/s | 439.938 gal/s |
| 5 m³/s | 1099.85 gal/s |
| 10 m³/s | 2199.69 gal/s |
| 25 m³/s | 5499.23 gal/s |
| 50 m³/s | 10998.5 gal/s |
| 100 m³/s | 21996.9 gal/s |