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Cake Serving Calculator

A cake serving calculator divides pan area by slice area. Party slices are 2×2 in (4 in²). Wedding slices are 1×2 in (2 in²). Tiers add. These are planning counts, not a Wilton trademark chart, though the slice sizes match common catering practice.

Quick Summary & Direct Answer
Kitchen

How many party slices are in an 8-inch round?

An 8-inch round has about 50.3 in². At 4 in² per party slice that is 13 servings. Wedding slices at 2 in² yield 25. Two tiers of 8 and 6 inches are about 20 party slices or 40 wedding slices.

Key Takeaways

  • Party = 4 in², wedding = 2 in².
  • Tiers add areas; they are not stacked as extra height in this count.
  • Sheet cakes use the same area rule.
  • Filling and crust waste are not subtracted.

party servings

20

Tier 1 area50.3 in² · 13 slices
Tier 2 area28.3 in² · 7 slices

Results can be wrong. This calculator is unofficial. Figures can be incomplete, rounded, or not updated. Use them at your own risk and check a tape, datasheet, ball band, or official chart before cutting, mixing, buying, or publishing. Party slices use about 4 in² and wedding slices about 2 in². Height, frosting, and how the cake is cut will change the count. Limits of liability are in the terms of service.

Frequently asked questions

About 13 party slices or 25 wedding slices.

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Publisher notes · reviewed 29 October 2026

Servings are area divided by slice area

Party slices are 4 in² (2×2). Wedding slices are 2 in² (1×2). An 8 in round is about 13 party or 25 wedding servings. Tiers add areas.

Height

Taller cakes are still one footprint unless a second tier is entered. Dense fruitcake is often cut smaller.

Worked examples

  • 8 in + 6 in party

    About 13 + 7 = 20 party slices.

Limits of this page

  • Icing flowers waste edge slices.
  • This is not a licensed Wilton chart; slice sizes match common catering practice.

Sources