Convert US gallons per day to UK gallons per day
Convert US gallons per day (gpd) to UK gallons per day (gpd) instantly and accurately.
Conversion Formula
gpd = gpd × 0.8326741846
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 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.
Quick Reference Table
| US gallons per day (gpd) | UK gallons per day (gpd) |
|---|---|
| 1 gpd | 0.832674 gpd |
| 2 gpd | 1.66535 gpd |
| 5 gpd | 4.16337 gpd |
| 10 gpd | 8.32674 gpd |
| 25 gpd | 20.8169 gpd |
| 50 gpd | 41.6337 gpd |
| 100 gpd | 83.2674 gpd |