There are approximately 2.1 pints in a U.K. liter. A liter is a measurement for liquid ingredients in the metric system, which is used by the United Kingdom while pints are used for measurement in the U.S. system.
Both pints and liters are measurements of volume. Liters are converted to pints by multiplying the number of liters by 2.1 to get the corresponding number of pints. Each pint equals 2 cups. For easy measurement with standard kitchen measuring cups, the number of pints is multiplied by 2 to get the corresponding number of cups. Liters are converted directly to cups by multiplying the number of liters by 4.2.