Is it even a party without cake? Yeah... we don't think so either. But it's hard to know just how much cake you're going to need. Some people aren't cake eaters at all, while others want all the cake.

Wedding cakes are a tradition dating back to Ancient Rome and have been a wedding staple ever since. Some believe that sharing wedding cake with friends and family will bring prosperity to a marriage.

Add Yahoo as a preferred source to see more of our stories on Google. Kathy Quirk-Syvertsen / Moment Mobile via Getty Images When we go to an event, whether it's a party or a wedding, we definitely ...

Sheet cake sizes vary, and that impacts how many people you can feed.