Oil barrels to US gallons
Type a value in Oil barrels and get the result in US gallons, calculated exactly.
10 Oil barrels = 420 US gallons
Precision
Exact factorThis result is exact.
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Formula
gal (US) = bbl × 42
To convert Oil barrels to US gallons, multiply the value by 42.
Worked examples
- 1 bbl × 42 = 42 gal (US)
- 10 bbl × 42 = 420 gal (US)
- 100 bbl × 42 = 4,200 gal (US)
This factor is exact by definition.
Conversion table
| Oil barrels (bbl) | US gallons (gal (US)) |
|---|---|
| 1 | 42 |
| 2 | 84 |
| 3 | 126 |
| 4 | 168 |
| 5 | 210 |
| 6 | 252 |
| 7 | 294 |
| 8 | 336 |
| 9 | 378 |
| 10 | 420 |
| 15 | 630 |
| 20 | 840 |
| 25 | 1,050 |
| 30 | 1,260 |
| 40 | 1,680 |
| 50 | 2,100 |
| 60 | 2,520 |
| 70 | 2,940 |
| 75 | 3,150 |
| 80 | 3,360 |
| 90 | 3,780 |
| 100 | 4,200 |
Values marked ≈ are rounded; the rest are exact.
Reverse table: US gallons to Oil barrels
| US gallons (gal (US)) | Oil barrels (bbl) |
|---|---|
| 1 | ≈ 0.02380952 |
| 2 | ≈ 0.04761905 |
| 3 | ≈ 0.07142857 |
| 4 | ≈ 0.0952381 |
| 5 | ≈ 0.1190476 |
| 6 | ≈ 0.1428571 |
| 7 | ≈ 0.1666667 |
| 8 | ≈ 0.1904762 |
| 9 | ≈ 0.2142857 |
| 10 | ≈ 0.2380952 |
| 15 | ≈ 0.3571429 |
| 20 | ≈ 0.4761905 |
| 25 | ≈ 0.5952381 |
| 30 | ≈ 0.7142857 |
| 40 | ≈ 0.952381 |
| 50 | ≈ 1.190476 |
| 60 | ≈ 1.428571 |
| 70 | ≈ 1.666667 |
| 75 | ≈ 1.785714 |
| 80 | ≈ 1.904762 |
| 90 | ≈ 2.142857 |
| 100 | ≈ 2.380952 |
Unit definitions
- Oil barrels bbl
- Exactly 42 US gallons, or 158.987294928 litres.
- US gallons gal (US)
- Exactly 231 cubic inches, or 3.785411784 litres.
Questions people ask
Oil barrels to US gallons: what is the conversion factor?
One bbl is 42 gal (US).
How do I convert Oil barrels to US gallons?
Use the formula above. For example, 10 bbl = 420 gal (US).
Is the conversion exact?
Yes. Both units have exact definitions, so the factor is exact; a result is only rounded when its decimals never end.
Factors checked 19 October 2026.