Cake Size Calculator
Find the smallest standard tier combination that serves your guest count at wedding or party slice sizes, plus the equivalent number of full sheet cakes. Calculates in your browser.
Recommended tiers
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Show the math
We find the smallest standard tier combination whose yield covers your guest count at the chosen slice size:
servings needed = guests × (party slices use ~2× cake)
Wedding slices are a slim 1×2 inches; party slices are about twice that, so the same cake serves fewer people. A full sheet cake yields roughly 96 wedding servings.
Yields are typical bakery figures. Everything is calculated in your browser.
What this does
A cake size calculator finds the smallest standard tier combination that serves your guest count at wedding or party slice sizes, plus the equivalent number of full sheet cakes.
How to use it
- Enter your guest count.
- Choose wedding or party slices.
- Read the smallest tier combo.
- See the sheet-cake equivalent.
How it works
Wedding slices are a slim 1×2 inches; party slices are about twice the size, so the same cake serves about half as many. A full sheet yields ~96 wedding servings.
pick smallest tier combo with servings ≥ guests
Understanding your result
Serving count depends entirely on slice size, so a cake feeds about half as many at generous party slices as at slim wedding slices, plan to the style you will actually cut. A plain sheet cake kept in the kitchen is a cheap way to stretch servings without enlarging the display tiers, which are chosen for looks as much as for portions.
Example
120 guests at wedding slices fit a 3-tier cake, or about 1.25 sheet cakes.
Sources & methodology
Last updated .
Frequently asked questions
What size cake do I need?
Match your guest count to a tier combination's serving yield. We pick the smallest standard combo that covers everyone at your chosen slice size.
What is the difference between wedding and party slices?
Wedding slices are a slim 1×2 inches; party slices are roughly twice the size, so the same cake serves about half as many people.
How many servings is a sheet cake?
A full sheet cake yields roughly 96 wedding-size servings, which is why it is an economical alternative to extra tiers.
Is my data kept?
No. Everything is computed locally in your browser.
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