Cake Servings Calculator
Work out how many servings a cake size and shape will give.
Quick answer: enter your details below and click Calculate Servings — your result appears instantly, right here in your browser. Nothing you enter is uploaded or stored.
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Enter your details below.
How to use
- Choose the cake shape.
- Enter the cake size in centimetres.
- Click Calculate Servings for the party-slice estimate.
About this tool
Cake servings depend on shape and size more than on recipe, and this calculator uses a typical servings guide for common round and square cakes. Figures are a curated guide for party slices, not a rule, and generous slices reduce the count. Cut evenly for the fairest share.
Frequently asked questions
Why do square cakes serve more?
A square cake of the same width has more area than a round one, so it cuts into more slices.
What if my slices are generous?
Then the count falls. Wedding-style thin slices serve more people than thick celebration slices.