Adjust for your crowd
Enter how many of your guests are kids; each counts as half an adult.
Sheet cake chart: 10 to 200 people
tap a row for its own list ↓| Guests | Slices | Half-sheet cakes |
|---|---|---|
| 10 people | 11 | 1 |
| 20 people | 22 | 1 |
| 25 people | 28 | 1 |
| 30 people | 33 | 1 |
| 40 people | 44 | 1 |
| 50 people | 55 | 2 |
| 75 people | 83 | 2 |
| 100 people | 110 | 3 |
| 150 people | 165 | 4 |
| 200 people | 220 | 5 |
How many people does a 48-slice cake serve?
slices
Feeds about 48 people.
Everything else for 20 people
How we got this number
- 120 guests × 1 slice = 20 slices
- 2× 1.10 cushion = 22 slices
- 3÷ 48 per cake = 0.5 → 1 half-sheet cake
we count slices, then round up to whole cakes.
Sources for this rule: Tasting Table (Sam's Club bakery); Wikipedia; Old Farmer's Almanac party chart; WebstaurantStore; ezCater.
How to make and decorate a sheet cake: the most-watched videos
Videos from YouTube, picked by us from the most-watched on the topic; view counts as of October 2026. We don't make these videos and aren't paid for them. Pressing play loads YouTube.
Sheet cake questions
How much sheet cake per person?
Plan on 1 slice of sheet cake per person. One cake (up to 48 small slices) serves about 48 people.
How much sheet cake for 100 people?
Plan on 110 slices: 3 half-sheet cakes. That's 1 slice per guest, plus a 10% cushion.
How many people does a 48-slice cake serve?
Feeds about 48 people.
Should kids count as a full person?
Count each kid as half an adult. Add them in the Kids box and the shopping list updates.