Convert US gallons per hour to US barrels per second

Convert US gallons per hour (gph) to US barrels per second (bbl/s) instantly and accurately.

US gallons per hour (gph)
US barrels per second (bbl/s)

Conversion Formula

bbl/s = gph × 6.613756614e-6

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 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 hour (gph)US barrels per second (bbl/s)
1 gph6.614 × 10-6 bbl/s
2 gph1.323 × 10-5 bbl/s
5 gph3.307 × 10-5 bbl/s
10 gph6.614 × 10-5 bbl/s
25 gph0.000165344 bbl/s
50 gph0.000330688 bbl/s
100 gph0.000661376 bbl/s

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