Convert UK gallons per hour to Cubic metres per hour
Convert UK gallons per hour (gph) to Cubic metres per hour (m³/h) instantly and accurately.
Conversion Formula
m³/h = gph × 0.00454609
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 hour
The cubic metre per hour (m³/h) equals 1/3600 m³/s ≈ 2.778×10⁻⁴ m³/s, the dominant volumetric flow unit in European process engineering, HVAC, and water treatment. Pump datasheet curves, heat-exchanger sizing software, and wastewater-treatment design all use m³/h as the standard. A domestic water pump runs at 3-8 m³/h; a municipal WWTP inlet pump handles 500-5 000 m³/h. 1 m³/h ≈ 2.778×10⁻⁴ m³/s = 1 000 L/h.
Quick Reference Table
| UK gallons per hour (gph) | Cubic metres per hour (m³/h) |
|---|---|
| 1 gph | 0.00454609 m³/h |
| 2 gph | 0.00909218 m³/h |
| 5 gph | 0.0227304 m³/h |
| 10 gph | 0.0454609 m³/h |
| 25 gph | 0.113652 m³/h |
| 50 gph | 0.227304 m³/h |
| 100 gph | 0.454609 m³/h |