How Big is a Quarter Sheet Cake

Are you setting up for a big party and need a cake, but are confused by the sizes of sheet cakes? You’re not alone, but we’re here to make it easy. Quarter sheet cakes at 9”x13” and are typically 2 inches in height. The serving size can be anywhere between 12 and 54 people.

Hello! My name is Michelle, and I love cakes. Sheet cakes are some of my favorite things to bake and eat, so I definitely know a thing or two about cake sizes. I’ve been baking cakes for over ten years and love every second of it and hope that you love cakes as much as I do!

There are a lot of sizes of sheet cakes, including quarter, half, and full. This article will explain how big a quarter sheet cake actually is, as well as some other interesting information you might want to know, like serving size abilities.

Let’s talk about sheet cakes, everyone!

How Big is a Quarter Sheet Cake

When it comes to how big a quarter sheet cake is, the answer is pretty simple: it’s a quarter of the size of a full sheet cake. Okay, great. But what are the specifics? Well, a quarter sheet cake is typically 9 inches by 13 inches in size.

How Deep are Quarter Sheet Cakes?

Quarter sheet cakes are most commonly two inches in height, too. However, the depth of the quarter sheet cake can change depending on who is baking the cake and how it’s being baked. Some pans are simply deeper than others and will render different results.

How Many People Will a Quarter Sheet Cake Feed?

The number of servings depends on two things: the size of the cake itself and the size of the servings. Obviously, a quarter sheet cake with more depth will be able to serve more people. Cutting the quarter sheet cake into small pieces will serve more people.

Normally, a quarter sheet cake will serve anywhere between 30 and 50 people. But let’s take a closer look at the number of servings depending on the specific serving sizes of a 9”x13”x2” quarter sheet cake.

1”x2” ServingUp to 54 people
2”x2” ServingUp to 24 People
2”x3” ServingUp to 18 People
3”x3” ServingUp to 12 People

*These are just estimates. If you are serving 50+ people, I recommend opting for a half or full-sheet cake to feed everyone a decent slice of cake. 

*For an accurate estimate of how many people can be served, use this formula: pan area (pan length X width) ÷ cake serving size area (a piece of cake length X width) = number of servings.


A quarter sheet cake is a quarter of a full-size sheet cake and can serve a big and small crowd, depending on the size of the servings. If you still have some questions about quarter sheet cake size and info, keep reading the frequently asked questions below.

How much does a 1/4 sheet cake feed?

It all depends on how big the servings are. A decent slice of cake can easily feed up to 30 people. Smaller slices can be sectioned off for up to 54 people. Larger portions are good for around 12 people. If you need to feed more party guests, opt for a larger-sized sheet cake.

What size is a 1/4 sheet cake pan?

Typically, a ¼ sheet cake pan will measure 13 inches by 9 inches and be one or two inches deep. However, sometimes a ¼ sheet cake pan can be slightly smaller and measure 12 inches by 8 inches and be two or three inches deep.

How much cake do I need for 25 guests?

To feed 25 guests, you need a cake that is at least 12 inches. This means that a quarter sheet pan can easily feed a party of around 25 guests with decent portion sizes. If you want larger-than-life slices of cake, don’t hesitate to size up your cake.

What does a 1/2 sheet cake look like?

Are you thinking about getting a ½ sheet cake rather than a ¼ sheet cake? This cake size typically measures around 15 inches by 11 inches, although it can be slightly larger and measure up to 16 inches by 12 inches.

Final Thoughts

A quarter sheet cake is typically 13 inches by 9 inches and one or two inches deep. With generous portion sizes, you can easily feed up to 30 people. Smaller slices can render up to 54 pieces. It’s a good option for small and small to medium party sizes.

Have you ever ordered a quarter sheet cake? Was it big enough for your party? Let us know how big the party was and if it was enough below!

About Michelle
I have been a lover of sweets since day one. This led me on a self-taught baking journey starting at the age of 13. It's been over 10 years since the start of my baking adventures, and I’ve learned a lot along the way. Now, people rave about my delectable treats, whether it’s a chocolate cake or a strawberry crepe.

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  • Susan

    What size sheet cake pan should I buy to serve 80
    Amount of batter and size of pieces ?

    • Angie

      Hi Susan,

      For that amount of people, I would suggest making a full sheet cake. Full sheet cake pans are 18” x 26” x 2” and you’re going to need about 28 cups of batter. A lot I know, but that should give you between 65-95 servings depending on how you cut it 🙂

      Hope that helps,