How many milliltres in a tea spoon?

There's no single, universally agreed upon answer to how many millilitres are in a teaspoon. It varies depending on:

* The size of the teaspoon: Teaspoons can range in size, with some holding more than others.

* The country or region: Different countries have different standards for teaspoon size.

* The context: Some recipes might use "teaspoon" as a loose measurement rather than a precise volume.

Here are some common conversions:

* US customary: 1 US teaspoon = approximately 4.93 ml

* UK imperial: 1 UK teaspoon = approximately 5.9 ml

* Australian: 1 Australian teaspoon = approximately 5 ml

In general, a teaspoon is considered to be around 5 ml.

However, it's always best to check the specific recipe or context you're working with to see if they provide a more specific conversion.