Convert oil barrels to US gallons
1 bbl = 42 gal. Change the amount below, or read the formula and the reference table further down.
1 oil barrel equals
US gallons
1 bbl = 42 gal
The formula
Oil barrels and US gallons both measure volume from the same zero, so a single multiplier does the job.
gal = bbl × 42
Going the other way? Convert US gallons to oil barrels.
Oil barrels to US gallons table
Common values, rounded for reading.
| Oil barrels (bbl) | US gallons (gal) |
|---|---|
| 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 |
| 75 | 3,150 |
| 100 | 4,200 |
| 250 | 10,500 |
| 500 | 21,000 |
| 1,000 | 42,000 |
Questions people ask
- How many US gallons are in a oil barrel?
- One oil barrel equals 42 US gallons.
- How do I convert oil barrels to US gallons by hand?
- Multiply the number of oil barrels by 42. For a rough check, 42 is close enough for most everyday use.
- What is 1 oil barrel in US gallons?
- 1 oil barrel is 42 US gallons.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.