UK Barrels
A UK barrel is 36 imperial gallons (not to be confused with American gallons), about 163.659 liters or 0.163659 cubic meters. It is based on the traditional wine barrel used in the United Kingdom.
UK teaspoons
A UK teaspoons is a common unit used in cooking and baking. A UK teaspoon is aligned with the metric teaspoon at 5 milliliters.