Convert Cubic metres per hour to US gallons per minute
Convert Cubic metres per hour (m³/h) to US gallons per minute (gpm) instantly and accurately.
Conversion Formula
gpm = m³/h × 4.402867539
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.
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.
Quick Reference Table
| Cubic metres per hour (m³/h) | US gallons per minute (gpm) |
|---|---|
| 1 m³/h | 4.40287 gpm |
| 2 m³/h | 8.80574 gpm |
| 5 m³/h | 22.0143 gpm |
| 10 m³/h | 44.0287 gpm |
| 25 m³/h | 110.072 gpm |
| 50 m³/h | 220.143 gpm |
| 100 m³/h | 440.287 gpm |