Convert from Teaspoon [metric] to ounce [UK, liquid]

Unit Definition (Teaspoon [metric])
The teaspoon is a unit of volume used in food recipes. In metric kitchens in Britain, Canada, Australia, and New Zealand, a teaspoonful is exactly 5 milliliters.

Unit Definition (ounce [UK, liquid])
The ounce [UK, liquid] is a traditional unit of liquid volume, also called the fluid ounce to avoid confusion with the weight ounce. In the British Imperial system there are 20 fluid ounces in an imperial pint, so each fluid ounce represents about 1.733 871 cubic inches or 28.413 063 milliliters. A British fluid ounce weighs exactly one ounce at a specified temperature and pressure.