Let's Talk About Cake, Baby...And Why Size Definitely Matters!

You’ve ordered the cake.
You’ve picked the theme.
You’re feeling organised and slightly superior.
Then comes the panic message,“Hi…I need a cake topper...help!”
Don’t worry. We’ve got you! Because balance matters. You don’t want a topper that whispers…or one that arrives with its own billboard!!

Let’s size it properly!

The Golden Rule is your cake topper width should be 70–85% of your cake’s diameter. That’s it. That’s the magic formula!
Example: 20cm cake → 14 to 16cm topper = chef’s kiss.

Here’s your quick reference guide:
🍰 5 inch cake (12 to 13cm diameter) Topper width: 8 to 10cm - Perfect for smash cakes, mini parties, or intimate dinners.
🍰 6 inch cake (15 to 16cm diameter) Topper width: 10 to 12cm - The most common small party cake size.
🍰7 inch cake (17 to 18cm diameter) Topper width: 12 to 14cm - Balanced and beautiful without overpowering the cake.
🍰 8 inch cake (20 to 21cm diameter) Topper width: 14 to 16cm - Your classic birthday cake size!
🍰 9 inch cake (22 to 23cm diameter) Topper width: 16 to 18cm - Great for longer names or double-digit ages.
🍰 10 inch cake (25 to 26cm diameter) Topper width: 18 to 20cm - Perfect for milestone birthdays or statement phrases.

And you ALWAYS measure the top tier, not the bottom.
Your topper should sit comfortably on the top tier without hanging over the edges.

✨ Shaker & Layered Acrylic Topper Sizing
If you’re choosing a 3D shaker topper, go 1–2cm smaller than standard.
Why? Because thickness makes it visually appear larger. It’s like cake-topper optical illusion science! Who knew cake toppers could be so complex!!!

Common Cake Topper Mistakes - let’s avoid these:
🤷‍♀️ Guessing the size
📏 Measuring the cake board instead of the cake
😓 Forgetting multi-tier cakes are sized from the top
😲 Choosing a long phrase on a small cake
If your wording is long (like 'Happy 50th Birthday Amanda'), you may need a slightly wider cake or a more compact design.
This is where a little bit of LiiArtsa's custom design magic saves the day! Most of our toppers are between 11 and 16cm so will look amazing on most 15 to 21cm cakes. We can upsize or downsize each topper as well - just let us know your cake size before you order so we can check the size will work for the design. And we custom design!

💡 Pro Tip - Before ordering your topper, ask your cake maker what the diameter of the top tier is, in centimetres. That one question prevents 99% of sizing disasters. 

And remember, this is a guide - not a strict rule. If your cake is very plain or minimal, a slightly larger topper can look incredible and create a real statement moment. If your cake is already detailed, textured, or full of decoration, a smaller, more refined topper often works better. It’s all about balance. The goal is for the cake and topper to complement each other, not fight for attention.

Cake toppers should elevate the cake, not compete with it.
And if you’re ever unsure, we can help guide you.
Because guessing is for party games…not party styling!