How Many Slices are in a Costco Pizza? A Comprehensive Breakdown

Costco, the well-known membership-based warehouse club, has become a popular destination for pizza lovers, with its delicious and affordable pizza offerings. With its debut in 1983, Costco’s food court quickly gained a reputation for its mouthwatering and generously sized pizzas. However, one burning question frequently pops up in pizza enthusiasts’ minds: “How many slices are in a Costco pizza?”, as knowing the number of slices can help determine the right amount to order for different occasions.

The purpose of this blog post is to provide a comprehensive breakdown of Costco pizza sizes and slice options, and address the common question surrounding the number of slices. We’ll explore the standard Costco pizza size, slicing options, and even share some tips for enjoying your Costco pizza at home. Let’s dive into the world of Costco pizza and unravel the mystery behind the number of slices.

Standard Costco Pizza Size

enjoying Costco pepperoni pizza

Costco pizzas are famous not only for their taste but also for their impressive size. The standard Costco pizza measures an impressive 18 inches in diameter, providing a substantial meal for multiple people. This large size makes it an excellent choice for parties, gatherings, or even a family dinner at home.

When compared to other pizza chains, Costco’s 18-inch pizza stands out for its generous portions. Many popular pizza chains offer large pizzas that typically measure between 14 to 16 inches in diameter. This extra size is one reason why Costco pizzas are so beloved by customers, as they provide more food at an affordable price.

The number of slices in a Costco pizza is influenced by its size, as larger pizzas can accommodate more slices. The standard 18-inch pizza is usually cut into 12 slices, each measuring around 5 inches long on the outer edge. This makes for a satisfying meal, as each slice is big enough to satisfy most appetites. However, it’s essential to remember that factors such as crust thickness, toppings, and personal preferences can impact the overall experience and perceived portion size. Nonetheless, Costco’s standard pizza size is a winning combination of taste, value, and satisfying portions.

Costco Pizza Slice Options

Slice OptionDescriptionIdeal For
Default (12 slices)The standard 18-inch Costco pizza is cut into 12 evenly-sized slices, each around 5 inches long.Parties, family gatherings, or sharing with friends
Custom slicingCustomers can request a specific number of slices based on their preference or party size.Catered events, personalized portions, or dietary needs
Half-and-halfDivide the pizza into two halves with different toppings, allowing for variety within one pizza.Smaller groups or families with varied tastes
Whole pizzaPurchase an uncut 18-inch pizza and cut it at home to your preferred slice size and count.Customizing for special occasions or unique slicing styles

Keep in mind that custom slicing options may vary by location and might not be available at all Costco food courts. It’s always a good idea to inquire about slicing options when placing your order.

Also Read: Does Costco Sell Dry Ice? Exploring Costco’s Selection and Alternatives

How to Enjoy Costco Pizza at Home

Costco pizza can be a delicious and satisfying treat to enjoy in the comfort of your own home. Here are some tips and tricks to remember to get the best Costco pizza experience:

  1. Reheating tips for the perfect slice: To maintain the taste and texture of your Costco pizza, it’s essential to reheat it correctly. Preheat your oven to 350°F and place the pizza directly on the oven rack for even heating. Reheat for 5-8 minutes or until the cheese is melted and the crust is crispy. You can also use a pizza stone or a baking sheet for reheating.
  2. Pairing Costco pizza with sides and drinks: Enhance your pizza experience by pairing it with delicious sides and beverages. Some popular options include garlic bread, a fresh garden salad, buffalo chicken wings, or mozzarella sticks. For drinks, consider pairing your pizza with a refreshing soda, a cold beer, or a glass of wine for a more sophisticated touch.
  3. Storing leftover pizza for later enjoyment: Proper storage is key to preserving the quality of your leftover pizza. Wrap individual slices in aluminum foil and store them in a container in the refrigerator for up to 4 days. For longer storage, consider freezing the wrapped slices in a freezer-safe container or ziplock bag. When you’re ready to enjoy your leftovers, allow the frozen pizza to thaw in the refrigerator before reheating.

Tips to Remember for Enjoying a Costco Pizza

When it comes to enjoying a Costco pizza, there are a few tips and tricks that can enhance your experience and make the most of this delicious offering. Here are some suggestions to consider:

  • Customize Toppings: While Costco offers a variety of pre-made pizza options, you can also customize your pizza by adding or removing toppings according to your preference. Consider personalizing your pizza by adding extra cheese, pepperoni, vegetables, or any other toppings available at the food court. This way, you can tailor the pizza to your own taste buds.
  • Pair with Beverages and Sides: To complete your Costco pizza meal, consider pairing it with a refreshing beverage and some tasty sides. The Costco food court usually offers a range of beverage options, including soda, water, and even smoothies. 
  • Save and Reheat Leftovers: Given the generous size of Costco pizzas, it’s common to have leftovers. Instead of letting them go to waste, consider saving them for future meals. To ensure the best quality when reheating, it’s recommended to wrap the pizza slices tightly in aluminum foil and place them in the oven at a low temperature until warmed through. This method helps preserve the texture and flavors of the pizza, allowing you to enjoy it even days later.
  • Freeze for Convenience: If you know you won’t be able to consume all the leftover pizza within a few days, freezing it is a great option. Store the slices in airtight freezer bags or containers, labeling them with the date for easy reference. 
  • Take Advantage of Costco Membership Benefits: Keep an eye out for special promotions or seasonal offerings, as Costco often introduces limited-time pizza flavors or combo deals that can add variety to your pizza experience.


Can I request a different number of slices for my Costco pizza? 

While the standard slicing pattern is 12 slices, you can request a different number of slices at the Costco food court. However, it’s important to note that the number of slices may vary slightly based on customization requests or human error.

Are the slices of a Costco pizza large? 

Yes, the slices of a Costco pizza are known for their generous size. Due to the large dimensions of the pizza itself, each slice is significantly larger than those found at many other pizzerias or food establishments.

Can I share a Costco pizza with others? 

Absolutely! One of the advantages of a Costco pizza is its large size, making it perfect for sharing with friends, family, or a group. Many people choose to enjoy a Costco pizza during gatherings, parties, or casual get-togethers due to its ability to satisfy a crowd.

Before You Go

Costco pizza, with its delicious taste and generous size, has earned its place in the hearts of pizza lovers everywhere. We’ve learned that the standard Costco pizza comes with 12 slices, though custom slicing options are available upon request. Understanding the number of slices in a Costco pizza can help you make wise decisions when catering for events, family gatherings, or simply satisfying your pizza cravings.

We encourage you to try Costco pizza for yourself and experience the delightful flavors and ample servings that have made it so popular. Costco pizza is a crowd-pleaser. As you indulge in your next slice, remember the journey we’ve taken together to uncover the secrets behind Costco pizza slices, and savor each bite with newfound appreciation. Happy eating!

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