How Much Cake for a 100-Guest Wedding
One hundred guests is the most common US wedding size, and the cake math lands cleanly on a classic three-tier stack. Here's the exact order, plus a smaller two-tier-and-sheet option if you'd rather keep the display cake compact.
For 100 guests, plan on 100 wedding servings. A 8, 10 and 12 inch round stack covers it at 118 servings, a straightforward single order with no kitchen sheet cake required.
The three-tier stack for 100 guests
At the default "everyone eats cake" setting, 100 guests need 100 wedding servings. A 8, 10 and 12 inch round stack covers it at 118 wedding servings (88 party servings), off Wilton's serving chart. Expect a cutting fee of about $100 to $300 if your venue charges one.
The two-tier-plus-sheet alternative
If you'd rather the display cake stay small, pair a two-tier 6 and 9 inch round stack with a sheet cake cut in the kitchen and out of sight during the reception. With a half sheet, the combination totals 142 wedding servings, comfortably past 100. A quarter sheet only gets you to 94, a bit short, so size up if guests are likely to all want a slice. This is the same trick bakeries use at much larger guest counts, scaled down: a compact, photogenic display cake up front, plain sheet cake doing the heavy lifting in back.
How many cupcakes for 100 guests
Swapping to cupcakes at this size is common and budget-friendly. Plan on 112 cupcakes, which is 1 per guest plus a 12 percent buffer, not a flat 100. Add a small 6 inch cutting cake for the traditional cake-cutting photo; that size is our own call, since no baker source publishes a standard, but couples overwhelmingly land on 6 inch.
What changes if not everyone eats cake
If you're also running a dessert table, the realistic cake share usually drops to about 80 percent, which brings 100 guests down to 80 servings needed. At that count, the two-tier-plus-quarter-sheet combination above (94 servings) already covers it, so you could drop straight to the smaller sheet size and save on the order. Run the exact numbers for your own share in the calculator below.
Run your own 100-guest numbers
The calculator below is pre-filled for 100 guests. Adjust the cake share, add a dessert table, or check a specific two-tier-plus-sheet combination in tiers mode.
Plan your wedding cake
From 1 to 1,000 guests.
Bakers size for less when other desserts are on offer.
Save the 100-guest cake order with the food list
The Wedding Money Kit's DIY Wedding Food Calculator has a Cake Order tab that sizes the tiers for your guest count and works out the cost per serving with the cutting fee, next to the food shopping list for the same crowd.
See The Wedding Money Kit →Headcount still moving?The Guest List with Cost Per Guest workbook prices every name, cake cutting included, so you can see what each yes adds and what trimming ten guests saves. See it in the kit →
Frequently Asked Questions
How much cake do I need for 100 guests?
One hundred guests is the most common wedding size in the US. At the default "everyone eats cake" setting, plan on 100 wedding servings. The smallest standard stack that covers it is a 8, 10 and 12 inch round stack, yielding 118 wedding servings (88 party servings). No kitchen sheet cake is needed at this size.
Is a three-tier cake enough for 100 guests?
Yes, a three-tier 8, 10 and 12 inch round stack covers all 100 guests with a small cushion (118 servings against 100 needed). If you'd rather run a smaller display cake, pair a two-tier stack with a sheet cake cut in the kitchen instead; see the option below.
Can a two-tier cake work for 100 guests?
Only with a sheet cake behind it. A 6 and 9 inch two-tier display plus a half sheet cut in the kitchen totals 142 wedding servings, more than enough for 100 guests, at a noticeably smaller and cheaper display cake than a full three-tier stack. The same two-tier display with a quarter sheet instead totals only 94, a touch short of 100, so size the sheet up if you go this route.
How many cupcakes for 100 guests?
Plan on 112 cupcakes: 1 per guest plus a 12 percent buffer, so it's 112, not an even 100. Add a 6 inch cutting cake for the photo moment.
Last updated: . Servings are Wilton's published chart; the cutting fee is this site's editorial estimate.