Convert UK gallons per second to Cubic yards per hour
Convert UK gallons per second (gal/s) to Cubic yards per hour (yd³/h) instantly and accurately.
Conversion Formula
yd³/h = gal/s × 21.40582043
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 yards per hour
The cubic yard per hour (yd³/h) equals 0.764554857984/3600 ≈ 2.124×10⁻⁴ m³/s, the standard unit for concrete pump output, earthwork compaction flow, and US dredging production rate reporting. A concrete pump truck delivers 30-80 yd³/h on a high-rise pour; a cutter-suction dredger handles 100-500 yd³/h in harbour maintenance. 1 yd³/h ≈ 2.124×10⁻⁴ m³/s.
Quick Reference Table
| UK gallons per second (gal/s) | Cubic yards per hour (yd³/h) |
|---|---|
| 1 gal/s | 21.4058 yd³/h |
| 2 gal/s | 42.8116 yd³/h |
| 5 gal/s | 107.029 yd³/h |
| 10 gal/s | 214.058 yd³/h |
| 25 gal/s | 535.146 yd³/h |
| 50 gal/s | 1070.29 yd³/h |
| 100 gal/s | 2140.58 yd³/h |