Did I Add This Up Right? 54 Party Servings For A 13X18 Cake?
Decorating By cupcakeco Updated 22 Feb 2010 , 4:16pm by cupcakeco

I am trying to figure how many 2x2x4 servings I'm going to get out of a 13x18 cake...
I do not own a 13x18 pan (or anything that remotely big) but am going to make two 9x13s and lay them side by side, double layer. I know this sounds like a lot of cake but also I need some wiggle room because it will be a carved piece.
Thanks.

Here's a couple of charts you could have a look at, hope it helps.
http://www.baking911.com/cakes/numberofservings_guide.htm
http://www.earlenescakes.com/ckserchart.htm

Just so you know, the 2"x2" "party" serving measurement is meant for single-layer, 2" high cakes, not 2-layer 4" high cakes. The standard serving size for a 2-layer 4" high cake is 1"x2"x4.
2"x2"x2" piece of cake is 8 cubic inches of cake
1"x2"x4" piece of cake is 8 cubic inches of cake
2"x2"x4" piece of cake is 16 cubic inches of cake (almost a foot and a half of cake per person!)
A 9"x13"x4" cake (468 cubic inches of cake divided by 8 cubic inches of serving) gives 58 1"x2"x4" servings, so two of them will give 116 1"x2"x4" servings.
A 9"x13"x2" cake (234 cubic inches of cake divided by 8 cubic inches of serving) gives 29 2"x2"x2" servings, so two of them will give 58 2"x2"x2" servings.
If you really want to go with the double sized servings, a 9"x13"x4" cake (468 cubic inches of cake divided by 16 cubic inches of serving) will give 29 2"x2"x4" servings, so two of them will give 58 2"x2"x4" servings.

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