Taasty Cakes guide
What size cake do you need for 20 people?
For 20 people, the right size depends on the type of cake, how big the servings are and whether other desserts will be served.
The short answer
To order a cake for 20 people, start by asking the baker for 20 servings. The diameter, height or number of tiers then depends on the style you choose — layer cake, number cake or classic cake — and on the portion size you have in mind.
Plan one serving per guest
Start by asking the baker for 20 servings. They can then recommend the diameter, height or number of tiers based on their recipe and decoration style.
One cake or several styles?
A layer cake, a number cake and a tiered cake aren’t sized the same way. The shape and decoration can also change how many servings you get.
What to tell the baker
Give the number of guests, the occasion, the date, the flavours, any allergies and whether you’ll collect the cake or need delivery, so you get a reliable answer.
Take the next step
Compare bakers and share your project to get a reply tailored to your event.
Frequently asked questions
What size cake do I need for 20 people?
There’s no universal size: the baker adjusts the diameter, height or shape to the type of cake and their recipe. Ask for 20 servings rather than a specific diameter.
Is a number cake for 20 people the same size as a layer cake?
No. The shape and height affect how many servings you get. The baker should size the number cake according to the digits chosen and the number of guests.
What should I include when ordering?
Give the number of people, the date, the occasion, the flavours, any allergies, the style you’d like and whether it’s for pickup or delivery.