Wedding Cake Size Guide
What size wedding cake do I need?
Choosing the perfect cake size is based on the number of guests you're expecting to have cake. This guide helps you choose with confidence so you don't order too much or too little.
Wedding Cake Size Calculator
How is a wedding cake different to a celebration cake?
- Taller tiers (5–6"): For presence and photos.
- Durability: Engineered to sit on display for hours safely.
- Engineering: Extra internal supports for travel across Perth.
- Setup: Includes scheduled delivery and professional on-site setup.
1) Decide how the cake will be served
Wedding-size (Larger slice): about 1" wide × 2" long × 3" tall. Plan for this if cake is the main dessert.
Coffee-size (Standard slice): about 1" wide × 2" long × 2" tall. Standard after a three-course meal.
At a Glance: Wedding Cake Sizes
Recommendations based on your guest count:
- Up to 50 Guests (Dessert): 12" Single Tier
- 40–80 Guests (Coffee): 6" + 8" (Two Tiers)
- 90–140 Guests (Coffee): 8" + 10" (Two Tiers)
- 100–160 Guests (Coffee): 6" + 8" + 10" (Three Tiers)
- 200+ Guests: 4 Tier Cake + additional kitchen portions
FAQ on Wedding Cake Size
Plan 60–75 serves if you’re doing a three-course dinner (coffee-size), or 85–100 if cake is the dessert.
12" single-tier cake (50 Dessert Portions)
6" + 8" two-tier cake for a classic wedding look. (80 Coffee Portions)
Roughly, yes! The height is about half (2" vs 4"), so you get about twice the number of serves from the same cake.
Yes! Add a kitchen cutting cake to boost serves while keeping your display size and budget in check.