Convert UK gallons per day to US gallons per day
Convert UK gallons per day (gpd) to US gallons per day (gpd) instantly and accurately.
Conversion Formula
gpd = gpd × 1.200949926
About UK gallons per day
The UK gallon per day (gpd) equals 4.54609×10⁻³/86400 ≈ 5.261×10⁻⁸ m³/s, used in British per-capita water-consumption statistics and pre-metric water-authority regulation. Historic UK Water Acts set minimum supply standards in UK gal/d per household; older UK borehole pump test reports quote sustained yield in UK gal/d. 1 UK gpd ≈ 5.261×10⁻⁸ m³/s.
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.
Quick Reference Table
| UK gallons per day (gpd) | US gallons per day (gpd) |
|---|---|
| 1 gpd | 1.20095 gpd |
| 2 gpd | 2.4019 gpd |
| 5 gpd | 6.00475 gpd |
| 10 gpd | 12.0095 gpd |
| 25 gpd | 30.0237 gpd |
| 50 gpd | 60.0475 gpd |
| 100 gpd | 120.095 gpd |