Convert from Teaspoon [UK] to milliliter

Unit Definition (Teaspoon [UK])
The teaspoon is a unit of volume used in food recipes. In Britain, a traditional teaspoonful in the kitchen was equal to 1/8 Imperial fluid ounce or approximately 3.55 milliliters, but the medical teaspoonful was usually 5 milliliters.

Unit Definition (milliliter)
The milliliter is a very common metric unit of volume. One milliliter equals 0.001 liter, exactly one cubic centimeter (cm³ or cc), or approximately 0.061 023 7 cubic inch or 16.231 U.S. minims. The milliliter is used almost entirely for measuring the volumes of liquids, with solids being measured in cubic centimeters.