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 (peck [US]) The peck [US] is a traditional unit of volume, formerly used for both liquids and solids but now used mostly for dry commodities such as grains, berries, and fruits. A peck is 2 gallons, 8 quarts, or 1/4 bushel. In the U. S. customary system, a peck holds 537.605 cubic inches or approximately 8.8098 liters.
