Cake Serving Calculator
Plan cake production by converting tier diameters and sheet pan sizes into serving counts for different events.
Enter one or more diameters separated by commas. Smallest to largest, bottom tier last.
Standard tiers are 4–5" tall. Adjust if your tiers differ.
Larger slices for birthdays and casual events.
Total servings
51
Includes tiers
Tier count
3
Tier height: 4.0"
Sheet cake servings
0
Optional supplement for large guest counts
Servings by Tier
| Tier Diameter | Area (in²) | Servings (Party (1.5" × 2" slices)) |
|---|---|---|
| 6.0" | 28.3 | 9 |
| 8.0" | 50.3 | 16 |
| 10.0" | 78.5 | 26 |
Assumes even slicing. For taller tiers, consider halving slices horizontally to maintain serving volume.
How to Use This Calculator
Enter your tier sizes
List round tier diameters in inches. Add sheet cake dimensions if you supplement with slab cakes.
Choose serving style
Pick party or wedding sizing to match the event. Serving size shifts the number of slices per tier.
Review servings per tier
Use the table to plan cutting guides, confirm guest counts, and add sheet cakes for large parties.
Formula
Tier servings = (π × (diameter ÷ 2)²) ÷ servingArea
Sheet cake servings = (length × width) ÷ servingArea
Example: 8" tier → area = 50.3 in² → party servings ≈ 16 (50.3 ÷ 3).
Tip: If tiers are taller than 4", cut slices in half horizontally to maintain the serving volume.
Full Description
Serving charts help bakers and event planners match cake size to guest counts. This calculator estimates servings using round tier diameters, optional sheet cakes, and two standard serving styles. Wedding portions are smaller to accommodate multi-course receptions, while party slices are more generous.
Enter tier diameters, the tallest temperature during storage (if relevant to stacking), and your preferred serving size. The tool returns total servings, per-tier breakdowns, and optional sheet cake contributions so you can configure dessert tables without guesswork.
Use cases
- Planning tier combinations for wedding and celebration cakes.
- Sizing sheet cakes to supplement a display cake for large guest lists.
- Creating cutting guides for venue staff or caterers.
- Estimating ingredient quantities by knowing total servings required.
Remember that actual servings depend on how neatly cakes are cut. Provide cutting diagrams to ensure caterers slice with consistent widths and heights. For sculpted cakes, reduce servings to account for carved portions.
Frequently Asked Questions
What if my tiers are square?
Square cakes yield slightly more servings. Multiply side × side to get area, then divide by serving area.
Can I mix party and wedding slices?
Yes. Use the calculator with both styles to see how guest count changes, then plan your cutting instructions accordingly.
How do I handle tall or double-barrel tiers?
Double-barrel tiers are effectively two tiers stacked. Treat them as separate diameters or divide servings by two if slices are halved.
Should I add extra servings?
Provide 5–10% extra for uncertain guest counts or dessert-focused events. Sheet cakes are an easy backup.