Capacity of coffee mug in metric?

There's no standard size for coffee mugs, so it's impossible to give a single capacity. However, here are some common sizes in metric units:

* Small: 150-250 milliliters (ml)

* Medium: 250-350 ml

* Large: 350-500 ml

* Extra Large: 500 ml and above

Keep in mind that these are just general guidelines, and actual capacities can vary significantly.