Pint

From Wikipedia

The pint is the name of the unit of liquid measurement in some countries. The pint is defined as 18 of the gallon. Because the imperial system and the American system use different gallons air pints are different also.

The imperial pint is still used to measure beer (also milk) in the countries of the old British Empire. It is usually not used today for anything else. It is divided into 20 fluid ounces.

The United States is the only other country to use pints. In the American system are are two pints. There is the wet pint and the dry pint. Six U.S. wet pints are about five imperial pints. The U.S. wet pint is divided into 16 fluid ounces.

1 imperial pint = 20 imperial fluid ounces (fl. oz.)
= 0.56826125 litres (exactly)
≈ 568 ml
≈ 1.20 U.S. wet pints
≈ 1.03 U.S. dry pints
1 U.S. wet pint = 16 U.S. fl. oz.
= 0.473176473 litres (exactly)
≈ 473 ml
≈ 0.83 imperial pints
≈ 0.86 U.S. dry pints
1 U.S. dry pint = 0.5506104713575 litres (exactly)
≈ 551 ml
≈ 0.97 imperial pints
≈ 1.16 U.S. wet pints