Convert US gallons per hour to US gallons per minute
Convert US gallons per hour (gph) to US gallons per minute (gpm) instantly and accurately.
Conversion Formula
gpm = gph × 0.01666666667
About US gallons per hour
The US gallon per hour (gph) equals 3.785411784×10⁻³/3600 ≈ 1.051×10⁻⁶ m³/s, common in oil-burner nozzle ratings, water-softener regeneration, and RV/marine-plumbing specifications. Residential oil-burner nozzles are rated in gph (e.g., 0.75 gph, 1.00 gph); a small boat bilge pump might handle 200-500 gph. 1 US gph ≈ 1.052×10⁻⁶ m³/s ≈ 3.785 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
| US gallons per hour (gph) | US gallons per minute (gpm) |
|---|---|
| 1 gph | 0.0166667 gpm |
| 2 gph | 0.0333333 gpm |
| 5 gph | 0.0833333 gpm |
| 10 gph | 0.166667 gpm |
| 25 gph | 0.416667 gpm |
| 50 gph | 0.833333 gpm |
| 100 gph | 1.66667 gpm |