Volume
gal (US)tobbl
Convert US gallons (gal (US)) to oil barrels (42 US gal) (bbl).
Factor1 gal (US) = 0.02380952 bbl
Converter
gal (US)
Accepts numbers or expressions, e.g. 150 + 14.7
Result
bbl
Rendered to 6 significant figures.
Formula
Formula
bbl = gal (US) × 0.02380952
Multiply any value in US gallons by 0.02380952 to obtain the value in oil barrels (42 US gal).
Worked example
Convert 100 gal (US) to bbl.
- 01Start with 100 gal (US).
- 02Multiply by the conversion factor: 100 × 0.02380952 = 2.38095 bbl.
Result100 gal (US) = 2.38095 bbl
Conversion table
| gal (US) | bbl |
|---|---|
| 1 | 0.02381 |
| 2 | 0.047619 |
| 5 | 0.11905 |
| 10 | 0.2381 |
| 20 | 0.47619 |
| 50 | 1.1905 |
| 100 | 2.381 |
| 200 | 4.7619 |
| 500 | 11.905 |
| 1000 | 23.81 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from gal (US) to bbl?
1 gal (US) equals 0.02380952 bbl. To convert, multiply the value in US gallons by 0.02380952.
How do I convert 1 gal (US) to bbl?
1 gal (US) = 0.0238095 bbl. For any value, multiply by 0.02380952.
How do I convert bbl back to gal (US)?
Divide by the same factor — or equivalently, multiply by 42. So 1 bbl = 42 gal (US).
When would I need to convert US gallon to oil barrel (42 US gal)?
Volume conversions are used for tank sizing, batch calculations, and bridging between vendor specs (gallons, barrels, ft³) and process documentation (m³, litres).
Is the conversion exact?
Yes. Both gal (US) and bbl are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).