**Definitions:**

**US Barrel Oil** (abbreviations: **US brl, or bbl**): is a unit of volume which is equivalent to 42 US gallons, or 35 imperial gallons, approx. 159 litres[10], as per United States.

**Inch Cube** (abbreviations: **in3, or ci**): is the volume of a cube with each of its three dimensions (length, width, and depth) being one inch long.

## How to Convert US Barrels Oil to Inches Cube

*Example: How many inches cube are equivalent to 81.47 US barrels oil?*

As;

1 US barrels oil = 9701 inches cube

81.47 US barrels oil = Y inches cube

Assuming Y is the answer, and by criss-cross principle;

Y equals 81.47 times 9701 over 1

(i.e.) Y = 81.47 * 9701 / 1 = 790340.47 inches cube

Answer is: 790340.47 inches cube are equivalent to 81.47 US barrels oil.

*Practice Question: Convert the following units into in3:*

N.B.: After working out the answer to each of the next questions, click adjacent button to see the correct answer.

( i ) 65.06 us brl

( ii ) 40.23 us brl

( iii ) 4.09 us brl