Cake Serving Calculator
"Will this cake feed everyone?" Work it out both ways — how many your cake serves, or what size to bake for a guest count.
How many does my cake serve?
What size cake for my guests?
Serving chart (two-layer cakes)
| Cake | Wedding | Party | Generous |
|---|---|---|---|
| 6" round | 14 | 11 | 7 |
| 8" round | 25 | 20 | 13 |
| 9" round | 32 | 25 | 16 |
| 10" round | 39 | 31 | 20 |
| 12" round | 57 | 45 | 28 |
| 9"×13" sheet | 58 | 47 | 29 |
How it works
Servings come from the cake's top surface area, not its volume — you cut down through all the layers at once, so a taller cake gives bigger slices rather than more of them. A wedding slice takes about 2 square inches of that surface, a party slice about 2.5, and a generous dessert slice about 4. Divide the area by the slice size and you have your count.
FAQ
Do more layers mean more servings?
No — they mean taller slices. Two layers is the standard the chart assumes; a single layer gives the same number of (shorter) slices, and most people would call those small.
How much cake should I make for a birthday?
Use party portions and add 10–15%. Running out is worse than leftovers, and cake keeps.
What about tiered cakes?
Add each tier's servings together — work out each tier separately above. Note that the top tier is often saved rather than served at weddings.