Keurig Cup Sizes: Your Complete Guide

For coffee connoisseurs, Keurig machines are the picture of convenience and excellent taste. But the one thing that often confuses people who own or shop for Keurig machines is Keurig cup sizes. 

Until a few years ago, Keurig machines came with a standard 8-ounce cup. But not all of us like our coffee in the same quantity. And understanding this, the makers released several other cup sizes to suit different users. 

keurig coffee maker

If you’re wondering what these sizes are and which one your Keurig is compatible with, keep reading!

What are Keurig Cup Sizes?

Keurig coffee machines are single-serve, which means they only produce one cup of coffee at a time. Currently, there are a total of 5 Keurig cup sizes in oz. There are:

  • 4 ounces
  • 6 ounces
  • 8 ounces
  • 10 ounces
  • 12 ounces

Depending on which Keurig machine model you possess, the choice of cup sizes will vary. Most Keurig coffee machines nowadays have 6 oz, 8 oz, and 10 oz cup sizes. The 8 oz and 10 oz sizes are available with every Keurig model without fail. But with some models, you can have the smallest and the largest Keurig cup sizes. 

Which Keurig Machines Offer Which Cup Sizes?

Wondering which machines come with the best Keurig cup sizes according to your tastes? Have a look at the table below to know which Keurig models offer which sizes. 

Keurig Cup Sizes – Comparison Table for Different Models

Keurig Coffee Machine Models Water Reservoir Capacity 4 oz 6 oz 8 oz 10 oz  12 oz
Keurig K-Mini  12 oz
Keurig K-Slim 46 oz
Keurig K-Mini Plus 12 oz
Keurig K-Express 42 oz
Keurig K-Elite 75 oz
Keurig K-Express Essentials 36 oz
Keurig K-Select 52 oz
Keurig K-Supreme 66 oz
Keurig K-Supreme Plus 78 oz
Keurig K-Café  60 oz
Keurig K-Supreme Plus Smart 78 oz
Keurig K-Duo  60 oz
Keurig K-Duo Plus 60 oz
Keurig K-Classic 48 oz

How to Choose the Cup Size on Your Keurig Machine?

Now that you know which cup sizes come with which models of Keurig, you’re better prepared to buy the suitable machine for yourself. But once you have it, how do you choose the cup size?

It’s pretty simple. For most Keurig models, you’ll have a few buttons on the machine indicating cup sizes with either numbers or icons. But for some models, it’s a little more complicated. 

The K-Mini and the K-Mini plus judge the cup size you want depending on how much water you put in the reservoir. 

Getting the Right Strength Out of Your Keurig

There are days when you would want a strong cup of coffee to wake you up, and there is somewhere just light, and a refreshing cup works perfectly fine. So how do you make sure your Keurig delivers the right strength coffee even though it has fixed cup sizes? 

There are two ways to go about this. To adjust the strength of your Keurig coffee, you need to use the “Strong” button. When you push it, your machine will deliver a more intense brew. 

But some Keurig models do not have this button. In those cases, an excellent way to alter the strength is by changing the water you put in. To understand how this strength alteration works, you must first know the working principle behind Keurig machines. 

The machine first heats the water to your chosen temperature. After that, it makes a hole in the K-cup with a needle (some advanced models use multiple needles) and pushes the water through the hole, starting the brewing process. 

As a rule of thumb, the more the water, the less will be the intensity of your brew. So if you want a more robust cup of coffee out of your Keurig, put in less water than usual. 

What’s the Right Keurig Cup Size per K-cup?

If you’re looking for a moderately intense cup of coffee, using the 8 oz cup with a single K-cup is a great idea. For stronger coffee, you can always change the cup size down to 6 oz or 4 oz. Similarly, for a weaker brew, you can take it up to 10 oz or 12 oz. 

However, remember that having a 12 oz cup with one K-cup will give you a very watery coffee with barely any strength. So what do you do if you want both strength and quantity? Just use 2 K-cups instead of 1!


That’s all there is to know about Keurig cup sizes. We hope this article will help you get a better cup of coffee. Comment below if you have questions regarding Keurig machines, how they work, or Keurig cups!

Related Content:

Keurig 2.0 – What is it?

Keurig Coffee Maker Review

How to Increase Water Temperature in a Keurig

Best K Cup Coffee Makers

Big Keurigs

Smallest Keurigs


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