Convert US gallons per minute to Litres per hour
Convert US gallons per minute (gpm) to Litres per hour (L/h) instantly and accurately.
Conversion Formula
L/h = gpm × 227.124707
About US gallons per minute
The US gallon per minute (gpm) equals 3.785411784×10⁻³/60 ≈ 6.309×10⁻⁵ m³/s, the dominant volumetric flow unit in US plumbing, HVAC, and water-treatment industries. EPA showerhead standards are set at 2.5 gpm; residential water meters size at 3/4"-1" for 5-20 gpm; municipal water-distribution design uses hundreds to thousands of gpm. 1 gpm ≈ 6.309×10⁻⁵ m³/s = 3.785 L/min.
About Litres per hour
The litre per hour (L/h) equals 10⁻³/3600 ≈ 2.778×10⁻⁷ m³/s, widely used in automotive fuel consumption (L/h), irrigation drip systems, and small pump specifications. A fuel cell vehicle running on hydrogen consumes ±2 L/h of liquid equivalent; a domestic water softener regeneration cycle uses 40-100 L/h of brine. 1 L/h ≈ 2.778×10⁻⁷ m³/s ≈ 0.2642 US gal/h.
Quick Reference Table
| US gallons per minute (gpm) | Litres per hour (L/h) |
|---|---|
| 1 gpm | 227.125 L/h |
| 2 gpm | 454.249 L/h |
| 5 gpm | 1135.62 L/h |
| 10 gpm | 2271.25 L/h |
| 25 gpm | 5678.12 L/h |
| 50 gpm | 11356.2 L/h |
| 100 gpm | 22712.5 L/h |