How many ounces is a coffee cup?

In this brief guide, we are going to answer ‘how many ounces is a coffee cup?’ Also, we will see the standard size of a coffee cup and some other metric measurements available around the globe.

How many ounces is a coffee cup?

Ounces in a coffee cup variates based on the coffee maker or drinker. An average coffee mug in the US can hold up to 250 milliliters or 8.45 fluid ounces of coffee. This measurement for a cup size is widely accepted.

However, few countries have their own metric systems too. For example, in Japan, their cups can hold up to 200 milliliters of liquid that is equal to 6.76 fluid ounces.  

How many ounces is a standard coffee cup?

All coffee cups are different. Some are thicker while some are taller than usual. As a general rule, cups are often smaller and hold up to 6 fluid ounces. While mugs on other hand are a bit wider or taller and hold up to 8 to 12 fluid ounces of liquid.

Cups are preferred to serve tea while mugs are the first choice to serve coffee or hot chocolate.

How many ounces are there in a standard serving of coffee?

A standard serving of coffee has 6 fluid ounces of brewed liquid. This 6-ounce serving excludes any added creamer or milk or any flavoring agent, it’s just plain brewed coffee.

Why is 6 ounces a standard serving?

Most coffee makers work on the 6 fluid ounce per serve principle. They need 1 to 2 tablespoons of coffee grounds per 6 fluid ounces of water. For this reason, 6 fluid ounces of coffee are set as standard.

Other coffee cup sizes

Size of coffee cups variates. Not a single you own will fill up a uniform amount of liquid. However, there are a few set sizes that range within;

  • A coffee mug contains about 8 fluid ounces
  • A slightly taller mug contains about 12 fluid ounces
  • Travel size coffee mugs contain about 16 fluid ounces
  • Traveling flask contains about 21 fluid ounces

Similarly, Starbucks have their own sizes for coffee which is divided into;

  • Short containing about 8 fluid ounces or 240 milliliters
  • Tall containing about 12 fluid ounces or 350 milliliters
  • Grande containing about 16 fluid ounces or 470 milliliters
  • Venti hot containing about 20 fluid ounces or 590 milliliters
  • Venti cold containing about 24 fluid ounces or 710 milliliters
  • Trenta cold containing about 31 fluid ounces or 920 milliliters

Similarly, some coffee types have their own serving sizes like;

  • Cappuccino contains about 5 to 5.5 fluid ounces or 150 to 160 milliliters
  • Latte contains about 11 to 15 fluid ounces or 325 to 440 milliliters
  • Espresso contains about 2 to 3 fluid ounces or 60 to 90 milliliters

Why is espresso served in a smaller cup, unlike other coffee?

Espresso is often served in a 2 to 3 fluid ounce cup this is because espresso is a pure concentrated, rich form of coffee. A few other types that are served in smaller quantities are Moka pot or Turkish coffee.

While other types of coffee are often diluted with water, foamed milk, cream, sweeteners, flavors, coconut oil, butter, lemon or alcohol. These additives add volume and cut down the bitterness and richness of concentrated coffee.

What are the different cup sizes used around the globe?

Like has been mentioned before, cup sizes differ based on the country you are in. Some examples are;

  • The United States uses the imperial system, which defines a cup as 8 fl. oz. (or 240 ml)
  • In Japan, a cup is 200 milliliters. But the traditional Japanese unit is 180.4 ml
  • In Latin America, a cup varies across countries. It can be between 200 and 250 ml
  • In Canada, a cup is 250 milliliters – the metric standard. But a Canadian cup is 227 ml

If you want to learn about the most popular types of coffee and how it is made, please refer here.

How to brew a perfect cup of coffee?

Whether you use a coffee maker or coffee pot, it all follows the same rule that is 1 to 2 tablespoons of coffee grounds depending on your preference of light or rich flavor add 6 ounces of pure filtered water.

Other FAQs about Coffee that you may be interested in.

How many cups of coffee does a pound of coffee make?

How long can coffee sit out?

Does Microwaving Coffee Change The Taste


In this brief guide, we answered ‘how many ounces is a coffee cup?’ Also, we have seen the standard size of the coffee cups and some other metric measurements available around the globe.

Hopefully, you found this guide informative and helpful. In case of any queries or questions, please do let us know.