At One Place

US gallons to oil barrels

1 US gallon in oil barrels
1 gal = 0.02381 bbl
bbl = gal × 1/42

To convert US gallons to oil barrels, multiply by 0.02380952381. The table below gives the values people look up most often, and the converter works for any number.

US gallons to oil barrels table

Common US gallon values converted to oil barrels.
US gallons Oil barrels
1 gal 0.02381
2 gal 0.047619
3 gal 0.071429
4 gal 0.095238
5 gal 0.11905
10 gal 0.2381
15 gal 0.35714
20 gal 0.47619
25 gal 0.59524
30 gal 0.71429
40 gal 0.95238
50 gal 1.190476
75 gal 1.785714
100 gal 2.380952
250 gal 5.952381
500 gal 11.90476
1,000 gal 23.80952

How the conversion works

The relationship is bbl = gal × 1/42. Both units measure volume, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.

US gallon: US liquid gallon. The imperial gallon is about 20% larger.

Oil barrel: Petroleum barrel = 42 US gallons.

Common questions

How many oil barrels are in one US gallon?
One US gallon equals 0.02381 oil barrels. bbl = gal × 1/42.
How do you convert US gallons to oil barrels?
Use bbl = gal × 1/42. So 10 gal is 0.2381 bbl.
How many US gallons are in one oil barrel?
One oil barrel equals 42 US gallons, which is the reverse of the conversion above.
Is there more than one kind of US gallon?
US liquid gallon. The imperial gallon is about 20% larger. Petroleum barrel = 42 US gallons.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked