Convert US gallons per day to US barrels per second
Convert US gallons per day (gpd) to US barrels per second (bbl/s) instantly and accurately.
Conversion Formula
bbl/s = gpd × 2.755731922e-7
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 barrels per second
The US barrel per second (bbl/s) equals 0.158987294928 m³/s, an extremely large flow rate used only for catastrophic spill-rate estimates and very large pipeline surge calculations. The 2010 Deepwater Horizon spill peaked at ≈60 000 bbl/d ≈ 0.000694 bbl/s; major subsea pipeline ruptures may briefly exceed 1 bbl/s during decompression. 1 US bbl/s = 0.158987 m³/s ≈ 158.987 L/s.
Quick Reference Table
| US gallons per day (gpd) | US barrels per second (bbl/s) |
|---|---|
| 1 gpd | 2.756 × 10-7 bbl/s |
| 2 gpd | 5.511 × 10-7 bbl/s |
| 5 gpd | 1.378 × 10-6 bbl/s |
| 10 gpd | 2.756 × 10-6 bbl/s |
| 25 gpd | 6.889 × 10-6 bbl/s |
| 50 gpd | 1.378 × 10-5 bbl/s |
| 100 gpd | 2.756 × 10-5 bbl/s |