It is an abbreviation for oil barrel which equates to 42 gallons.
0.00000000000187
1 liters = 0.264172052 US gallons
264.172052 gallons.
1 pint = 0.125 gallons
.25 gallons = 1 quart
7.48 gallons
4 gallons = 1 gallon 1 gallon= 1/4 quart
1
200 imperial gallons
1 m3 = 264.172 gallons.
7 gallons