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Cake Serving Calculator Guide
Ordering or baking a cake for an event? This calculator tells you how many servings a cake yields based on its shape, size, tiers, and whether you're cutting generous party slices or smaller wedding-style slices.
Servings come from standard cake-cutting charts. The same cake yields far more servings cut wedding-style (1"×2" slices) than party-style, so pick the style that matches your event.
How Many People Does a Cake Serve?
A cake's servings depend on its dimensions and how it's cut. A 9-inch round serves about 20 party slices or 32 wedding slices. For tiered cakes, add up the servings of each tier.
Round Cake Servings
| Size | Party | Wedding |
|---|---|---|
| 6 inch | 6 | 12 |
| 8 inch | 12 | 24 |
| 9 inch | 20 | 32 |
| 10 inch | 28 | 38 |
| 12 inch | 40 | 56 |
| 14 inch | 52 | 78 |
Worked Example
A 10-inch round cut party-style serves about 28 people; the same cake cut wedding-style serves about 38.
Tips
- Match the style to the event — dessert-focused parties want bigger slices; formal events use smaller ones.
- Round up so no guest misses out, and account for seconds.
- Tiered cakes add each tier's servings; the bottom tier does the heavy lifting.
Baking rather than buying? Plan your dough with the Pizza Dough Calculator and convert oven times with the Air Fryer Conversion Calculator.
Frequently Asked Questions
How many people does a cake serve?
It depends on size and cut — a 9-inch round serves about 20 party slices or 32 smaller wedding slices.
How big a cake do I need for 50 guests?
A 12-inch round cut party-style (about 40) plus an 8-inch tier, or a 12-inch cut wedding-style (about 56), covers 50 guests.
How many servings in a round cake?
Roughly 6 for a 6-inch up to about 40 for a 12-inch when cut party-style, and more when cut wedding-style.
How do I calculate tiered cake servings?
Add up the servings of each tier from a standard chart — this calculator does that when you set the number of tiers.
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