Depends on the year/make/model, but in general they range from 13gallons-20gallons, most of them are in the 15-17 range.
Up to 17.4 gallons.
138 Imperial gallons, approx.
Up to 4,318.26 US gallons of water.
In the whole car or in the gas tank?
You can fit 8 gallons in 8 gallons.
Yes, you can make it fit with major modifications.
15.5 gallons
12,960 US gallons will 'fit' in 1,733 cubic feet.
About 20 gallons
A 2012 Honda Fit has a fuel tank capacity of around 10.6 gallons.
The number of barrels that can fit in a cylinder depends on the dimensions of the cylinder and the barrels. The formula to calculate the volume of a cylinder is πr^2h, where r is the radius of the base of the cylinder and h is the height. By dividing the volume of the cylinder by the volume of a barrel, you can determine how many barrels can fit inside.
12 liters is about 3.170 US gallons.