Convert US gallons per day to US gallons per hour
Convert US gallons per day (gpd) to US gallons per hour (gph) instantly and accurately.
Conversion Formula
gph = gpd × 0.04166666667
About US gallons per day
The US gallon per day (gpd) equals 3.785411784×10⁻³/86400 ≈ 4.381×10⁻⁸ m³/s, the standard unit in US water-utility regulation and residential water-well pump sizing. The US national average residential water use is about 80-100 gpd per person; a reverse-osmosis membrane module is rated in gpd (50-100 gpd for domestic units). 1 US gpd ≈ 4.381×10⁻⁸ m³/s.
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.
Quick Reference Table
| US gallons per day (gpd) | US gallons per hour (gph) |
|---|---|
| 1 gpd | 0.0416667 gph |
| 2 gpd | 0.0833333 gph |
| 5 gpd | 0.208333 gph |
| 10 gpd | 0.416667 gph |
| 25 gpd | 1.04167 gph |
| 50 gpd | 2.08333 gph |
| 100 gpd | 4.16667 gph |