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How Much Cake to Buy for a Crowd

How Much Cake to Buy for a Big Group or Crowd and How to Calculate the exact amount you need

Are you planning to serve cakes for your gathering with friends and family this weekend? Are you having a big group over - so exactly how much cake to buy for a crowd big or small. Need cake for 100 people then we have the answer.

Is a 2-kilogram cake is enough for 20 to 30 people - we tell you exactly how much to bring - so scroll down to see the type of cake you want to serve.

Cake, along with cupcakes is one of the most popular baking sweet treats to serve to a big group.

However, if you are going to be with a large group, it can be overwhelming to calculate how much cake you need to bring or cater for and you do not want leftover cake.

One of the other benefits of serving a layer cake or any cake design including Ice cream cake is that you can serve it for dessert for a crowd. So after those burgers for a crowd - you can easily make your guests happy.

But how much cake do I need for 50 guests?

Know that a single slice of cake is usually not enough for one person.

Of course, it is always better to have a quarter sheet cake left over rather than a half sheet cake under.
A great tip that we can give is to bring more than the exact number of guests to give you an idea of how much to buy.

So let’s get on to it.

The details we have below are the suggested amount of cakes per group size. Whether you plan to bring a traditional tiered cake, carrot cake, Texas sheet cake, or thin cake, we got you covered for that.

How Do You Calculate Cake Servings

To give you an idea of how much cake to bring for a crowd, we will give you the details below. We have also provided the type of cake, the shape of the cake, the number of tiers, and the number of servings you need for 20 to 100 or even 150 people. 

Also see out guide on waffles for a crowd and how many chips you need for a large group.

Sheet Cake For !00 People
Sheet Cake For !00 People

Sheet Cake

Below are the details you need to know how much sheet cake you need to bring for a crowd of 20 to 100 people. You can see the numbers of inches, layers, and amount of servings you need to look out for in a cake.  These cakes are made in very large a sheet pan commercially and if you use these dimensions you can get the right amount of sheet cake for 20-100 guests

Number of guests: 20 people

Cake size: 7 x 11 inches

Number of layers: 2 cake layers

Serving size: 24 servings

Number of guests: 35 people

Number of inches: 9 x 13 inches

Number of layers: 2 cake layers

Serving size: 36 servings

Number of guests: 50 people

Number of inches: 11 x 15 inches

Number of layers: 2 cake layers

Serving size: 54 servings

Number of guests: 70 people

Number of inches: 12 x 18 inches

Number of layers: 2 cake layers

Serving size: 72 servings

Number of guests: 100 people

Number of inches: 16 x 23 inches

Number of layers: 2 cake layers

Serving size: 100 servings

These are the available inches of sheet cakes usually bought in bakeshops. So, if you have more than the number of guests listed above, you just have to double your purchase and make sure every guest has his own share.

Round Wedding Cake
Round Wedding Cake

Round Wedding Cake

Below are the details you need to know how much round cake for a wedding you need to buy for a crowd of 20 to 100 people. You can see the numbers of inches, layers, and amount of servings you need to look out for in a cake. 

Number of guests: 20 people

Cake size: 8 inches

Number of layers: 2 tiers

Serving size: 24 servings

Number of guests: 35 people

Number of inches: 10 inches

Number of layers: 2 tiers

Serving size: 38 servings

Number of guests: 50 people

Number of inches: 12 inches

Number of layers: 3 tiers

Serving size: 56 servings

Number of guests: 70 people

Number of inches: 14 inches

Number of layers: 5 tiers

Serving size: 78 servings

Number of guests: 100 people

Number of inches: 16 inches

Number of layers: 6 tiers

Serving size: 100 servings

These are the available inches of round wedding cakes usually bought in bakeshops. So, if you have more than the number of guests listed above, you just have to double your purchase and make sure every guest has his own share.

Square Wedding Cake
Square Wedding Cake

Square Wedding Cake

Below are the details you need to know how many square wedding cakes you need to bring for a crowd of 15 to 100 people. You can see the numbers of inches, layers, and amount of servings you need to look out for in a cake. 

Number of guests: 15 people

Cake size: 6 inches

Number of layers: 2 tiers

Serving size: 18 servings

Number of guests: 30 people

Number of inches: 8 inches

Number of layers: 2 tiers

Serving size: 32 servings

Number of guests: 50 people

Number of inches: 10 inches

Number of layers: 3 tiers

Serving size: 50 servings

Number of guests: 70 people

Number of inches: 12 inches

Number of layers: 5 tiers

Serving size: 78 servings

Number of guests: 100 people

Number of inches: 16 inches

Number of layers: 6 tiers

Serving size: 100 servings

These are the available inches of square wedding cakes usually bought in bakeshops. So, if you have more than the number of guests listed above, you just have to double your purchase and make sure every guest has his own share.

Heart-shaped Cake

Below are the details you need to know how many heart-shaped cakes you need to bring for a crowd of 20 to 90 people. You can see the numbers of inches, layers, and amount of servings you need to look out for in a cake. 

Number of guests: 20 people

Number of inches: 8 inches

Number of layers: 2 layers

Serving size: 22 servings

Number of guests: 25 people

Number of inches: 9 inches

Number of layers: 2 layers

Serving size: 25 servings

Number of guests: 35 people

Number of inches: 10 inches

Number of layers: 2 layers

Serving size: 38 servings

Number of guests: 55 people

Number of inches: 12 inches

Number of layers: 2 layers

Serving size: 59 servings

Number of guests: 70 people

Number of inches: 14 inches

Number of layers: 2 layers

Serving size: 72 servings

Number of guests: 90 people

Number of inches: 16 inches

Number of layers: 2 layers

Serving size: 92 servings

These are the available inches of heart-shaped cakes usually bought in bakeshops. So, if you have more than the number of guests listed above, you just have to double your purchase and make sure every guest has his own share.

Birthday cake For 100 People Exact Calculations
Birthday cake For 100 People Exact Calculations

Round Birthday Cake

Below are the details you need to know how many round-shaped birthday cakes you need to bring for a crowd of 8 to 65 people. You can see the numbers of inches, layers, and amount of servings you need to look out for in a cake. 

Number of guests:  8 people

Number of inches: 4 inches

Number of layers: 2 layers

Serving size: 8 servings

Number of guests: 10 people

Number of inches: 6 inches

Number of layers: 2 layers

Serving size: 12 servings

Number of guests: 15 people

Number of inches: 8 inches

Number of layers: 2 layers

Serving size: 20 servings

Number of guests: 20 people

Number of inches: 9 inches

Number of layers: 2 layers

Serving size: 24 servings

Number of guests: 25 people

Number of inches: 10 inches

Number of layers: 2 layers

Serving size: 28 servings

Number of guests: 35 people

Number of inches: 12 inches

Number of layers: 2 layers

Serving size: 40 servings

Number of guests: 60 people

Number of inches: 14 inches

Number of layers: 2 layers

Serving size: 63 servings

Number of guests: 65 people

Number of inches: 16 inches

Number of layers: 2 layers

Serving size: 67 servings

These are the available inches of round birthday cakes usually bought in bakeshops. So, if you have more than the number of guests listed above, you just have to double your purchase and make sure every guest has his own share.

Pound Cake
Pound Cake

Pound Cake

Below are the details you need to know how many pound birthday cakes you need to bring for a crowd of 20 to 80 people. You can see the numbers of inches, layers, and amount of servings you need to look out for in a cake. 

Number of guests:  10 people

Number of inches: 6 inches

Number of layers: 2 layers

Serving size: 12 servings

Number of guests: 20 people

Number of inches: 8 inches

Number of layers: 2 layers

Serving size: 20 servings

Number of guests: 30 people

Number of inches: 10 inches

Number of layers: 2 layers

Serving size: 30 servings

Number of guests: 55 people

Number of inches: 12 inches

Number of layers: 2 layers

Serving size: 48 servings

Number of guests: 60 people

Number of inches: 14 inches

Number of layers: 2 layers

Serving size: 63 servings

Number of guests: 80 people

Number of inches: 16 inches

Number of layers: 2 layers

Serving size: 80 servings

These are the available inches of square birthday cakes usually bought in bakeshops. So, if you have more than the number of guests listed above, you just have to double your purchase and make sure every guest has his own share.

How many pounds of cake do I need for 20 people?

A group of 20 people would need five pounds (5 lbs) or 12 inches of Pound, Sheet, and Layer type of cake. While a two-tier wedding cake or 6 pounds cake can serve 20 to 30 people.

Is 2 kg cake enough for how many?

A 2-kilogram cake is enough for 20 to 30 people.

How many people do a 7-inch cake feed?

It actually depends on the cake's shape. A round, single-layer 7-inch cake can feed 11 people. While a square, single-layer cake can approximately feed 18 people in a large group.

How many pounds of cake do I need for 20 people?

Our local bakery advised that about 5.2 ox per person (150g) - so for 20 guests you need 6.5 lb - lets round that up to 7 lb or 3.5kg of cake.

How many pounds of cake do I need for 50 people?

Our local bakery advised that about 5.2 oz per person (150g) - so for 50 guests you need 16.26 lb - lets round that up to 17 lb or 8.5kg of cake.

How many pounds of cake do I need for 100 people?

Our local bakery advised that about 5.2 ox per person (150g) - so for 100 guests you need 13 lb - lets round that up to 14 lb or 7 kg of cake.

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