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Oil barrels to US gallons

1 oil barrel in US gallons
1 bbl = 42 gal
gal = bbl × 42

To convert oil barrels to US gallons, multiply by 42. The table below gives the values people look up most often, and the converter works for any number.

Oil barrels to US gallons table

Common oil barrel values converted to US gallons.
Oil barrels US gallons
1 bbl 42
2 bbl 84
3 bbl 126
4 bbl 168
5 bbl 210
10 bbl 420
15 bbl 630
20 bbl 840
25 bbl 1,050
30 bbl 1,260
40 bbl 1,680
50 bbl 2,100
75 bbl 3,150
100 bbl 4,200
250 bbl 10,500
500 bbl 21,000
1,000 bbl 42,000

How the conversion works

The relationship is gal = bbl × 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.

Oil barrel: Petroleum barrel = 42 US gallons.

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

Common questions

How many US gallons are in one oil barrel?
One oil barrel equals 42 US gallons. gal = bbl × 42.
How do you convert oil barrels to US gallons?
Use gal = bbl × 42. So 10 bbl is 420 gal.
How many oil barrels are in one US gallon?
One US gallon equals 0.02381 oil barrels, which is the reverse of the conversion above.
Is there more than one kind of oil barrel?
Petroleum barrel = 42 US gallons. US liquid gallon. The imperial gallon is about 20% larger.

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