120ml is a measurement of volume. To understand how much it is, you need to know what it's measuring:

* Liquid: 120ml is roughly a little more than 4 fluid ounces (4.06 fl oz to be exact). This is a bit more than a standard cup of coffee.

* Other: 120ml can also be used for other things like dry ingredients, but it's less common.

Here are some comparisons to give you a better idea:

* Small: A standard shot glass is about 60ml.

* Medium: A can of soda is about 355ml.

* Large: A standard bottle of wine is about 750ml.

To summarize, 120ml is a relatively small volume, a little over 4 fluid ounces.