Costco Pizza Size Explained for Feeding Up to 100 Guests

Has cheap Costco pizza enticed you, and now you want to know how many of these pizzas you should get for your dear ones?

Getting cost-effective pizzas at Costco can save you a lot. But the situation can be stressful if you order fewer pizzas or too many. 

So what do you need? 

Perfect calculations about Costco pizza size and servings.

Yeah, it’s complex, but don’t worry… We’ve made it easy for you. 

In this article, we’ve done a complete calculation and come up with a complete chart of Costco pizzas that you need for a big party.

You only need to give it a full read.

Let’s get into it!

How Big is Gigantic 18-Inch Pizza at Costco?

Costco’s 18-inch pizza is a true giant in the pizza world. To understand its size, we need to look at its area. Using the formula for the area of a circle (Area = π * r^2), where r is the radius of the pizza (which is half of the diameter), we can calculate its area.

For the 18-inch pizza:

Radius=Diameter/2=18/s2=9 inches

Area=𝝅r2

Area=3.14∗9∗9

Area=254.47 square inches

So, Costco’s 18-inch pizza covers approximately 254.47 square inches, making it a whopping 66% larger than the standard 14-inch pizza.

How Many Calories Does Costco Pizza Have, and Why Do You Need to Know It?

Knowing a pizza’s calorie content is vital to know how many people a Costco pizza can feed. It’s because the calorie information about your food helps you to serve the eaters the right amount of pizzas to different people of different age groups.

Mixed-gender adults need 500-700 calories (600 on average), younger kids need 300-450 calories (400 on average), and older kids or tweens over 8 years of age need 550 calories on average in a single meal.

So, keeping their average calorie needs per meal in view and comparing it with pizza’s calories, you can decide on the portions of Costco pizza most precisely. This way, the pizza treat will be satisfying and balanced, making gatherings enjoyable for everyone, no matter their appetite.

Now the question arises: how many calories does a Costco pizza have?

As per the Costco Food Database: 

• Whole Costco pepperoni pizza has 3880 calories.
• Whole Costco cheese pizza 4260 calories
• Costco Half and Half Pizza has 4080 calories.

How Many People Does Costco’s Pizza Feed?

Now, when you know about the Costco pizza calories and standard dietary needs of individuals per meal, it’s easy to find out how many people a Costco pizza serves. These are as given below:

• A whole Costco cheese pizza with 4260 calories can serve 7 adults, 12 kids, and 8 older kids/tweens on average, perfectly aligning with their per-meal calorie needs.
• A whole Costco half-and-half pizza with 4080 calories can serve 6 adults, 11 kids, and 7 older kids or tweens, catering to their calorie requirements.
• A whole Costco pepperoni pizza can serve 7 adults, 7 older kids, and 10 kids, delivering a fulfilling meal within their calorie range.

Thus, Costco’s pizzas can effectively accommodate various age groups, making them a versatile and convenient choice for families and gatherings. Th

Note: 

• By tweens, we mean the kids of ages 8-12.
• The serving needs for pizza further decrease by 20-40 percent or more when you have some sides as well. 

So, How Many Costco Pizzas Should You Get for 20 People? 

Any large-size pizza from Costco can feed 7 adults, 12 kids of age (5-8), and 7 older kids of age 9-13. You may need Costco pizzas for as follows:

• 3-4 pizzas to feed all adults or teens.
• 3-4 pizzas for older kids of above 8 years of age
• 2 pizzas for kids of mixed ages between 4-8

For feeding a group of 20 of diverse age groups opt for 3 Costco pizzas.

How Many Costco Pizzas Do You Need for 10, 20, 30, 40, 50 …100 Guests?

It’s not simple to order Costco pizzas every time you have to throw a pizza party. You might invite a few guests or more than 20. To help you get instant calculations, we’ve got you covered to serve up to 100 with Costco pizza in the chart given below.

Number of Guests	Adults	Tweens (8+ Kids)	Kids of 5-8
10	2	2	1
20	3-4	3-4	2
30	5	5	2-3
40	6	6	4
50	8-9	8-9	4-5
60	9	9	6
70	11-12	11-12	7
80	12	12	7-8
90	13-14	13-14	9
100	15	15	10

Note

These approximations are based on the average servings per pizza. The actual number of pizzas needed may vary based on individual appetites and other menu items available at the event.

The key is to consider the average appetite or calorie needs of your guests, pizza sides and estimate the food servings accordingly.

Some Other Factors to Consider When Ordering Costco Pizza for your guests

• Consider the diversity in appetites among guests. Some may eat more, while others eat less, affecting the number of pizzas needed.
• Consider the age groups you’re feeding. Different age groups have varying calorie needs. Adults generally need more calories than children, and teenagers might eat more than younger kids.
• Accommodate dietary choices of your guests, such as vegetarian, gluten-free, or vegan options. Some guests might have allergies or specific food preferences.
• Other Menu Items: If you’re serving other dishes or appetizers, it can reduce the number of pizzas needed. A variety in the menu caters to different tastes.
• Consider the duration of the event. Longer events may require more food as guests might eat multiple times.
• Type of event also matters: Formal events might have set meal times, whereas casual gatherings might involve more snacking. Adjust the quantity based on the event type.
• Avoid leftovers. Though it’s good to have extra food, excessive leftovers might be wasteful. So, strike a balance to avoid unnecessary food waste. Reduce the pizza quantity by 20-40 percent or more depending on the sides you’re serving with it.
• Gather your guest preferences preferences or RSVPs to estimate the quantity needed more accurately. This helps in planning a menu that pleases the majority of your guests.

By taking care of these factors and planning your pizza party, you can make your guests happy without wasting food.

FAQs

How Many Slices is a Costco Pizza Cut into?

Costco pizza is cut into 12 even slices. Thus, each slice measures 21.20 square inches. Each pizza slice is enough to feed 1 kiddo. You can also get your pizza sliced into 12 slices.

Does Costco deliver pizza?

No, Costco does not deliver pizza. You can only order Costco pizza in person at the Costco food court or by calling your local Costco and placing an order for pickup.

There are a few workarounds that you can use to get Costco pizza delivered, but they all involve some extra work or expense.

• You can use a third-party delivery service like DoorDash or Grubhub to deliver your Costco pizza. However, you will typically pay a delivery fee of around $10-20.
• You can ask a friend or family member who has a Costco membership to buy you a pizza and then deliver it to you.
• You can buy a Costco pizza kit and make your own pizza at home. This is the most affordable option, but it does require some time and effort.

Do you Need a Costco Card to Buy Pizza in 2023?

Yes, you need a Costco membership card to buy pizza at Costco in 2023. Costco started requiring a membership card for food court purchases in March 2020. This includes pizza, hot dogs, soda, churros, and ice cream.

There are a few exceptions to this rule. You do not need a membership card to buy food court items if you are:

• A Costco employee
• A guest of a Costco member
• Buying food court items at a Costco with an outdoor food court

If you are not a Costco member and you want to buy pizza at Costco, you will need to find someone who is a member and ask them to buy it for you. You can also buy a Costco pizza kit and make your own pizza at home.

What are the Topping Choices for Costco Pizza?

Costco offers two topping choices: pepperoni and cheese. Additionally, there’s a secret half-and-half option available at the self-service kiosk, allowing customers to enjoy a blend of both toppings.

Is Customization Possible for Costco Pizza? 

Costco has limited topping options for pizzas like pepperoni, cheese, or half-and-half, yet they stand out with their unique and delicious blend of flavors. Though choices are limited, customers can enjoy a blend of high-quality ingredients that exemplify Costco’s commitment to taste and quality.

What Sets Costco’s Cheese Pizza Apart? 

Costco’s cheese pizza is an 18″ delight made with 10.5 ounces of tomato sauce and a unique 24-ounce blend of mozzarella, provolone, and parmesan cheeses. This distinctive cheese blend sets Costco’s pizza apart, offering a rich and flavorful experience.

How Many Slices Does a Whole Costco Pizza Have?

Each whole 18″ pizza is precisely cut into 12 slices using a cutting guide, ensuring efficiency and precision. Costco also sells individual slices, each twice the size of a slice from a whole pizza, for $1.99, providing convenient options for customers.

How Does Costco Pizza Compare in Terms of Cost and Size?

Costco’s 18″ pizza, regardless of toppings, costs $9.95, making it a large and affordable choice. In comparison, competitors like Pizza Hut charge $12 for a 14-inch one-topping pizza, Domino’s large 14″ one-topping pizza costs $13.99, and Papa John’s charges $11 for a 14-inch one-topping pizza. Costco’s pizza not only offers size but also unbeatable value.