Halloween (Oct 31)

This terror-ific calculator will help you figure out how many candies will fit into your Halloween container. You can also calculate how much candy your adult need to buy for trick or treaters coming to your door.

An awesome calculator that lets you calculate the progression of the Vampire Apocalypse (as written in various vampire novels or calculate it for your own vampire story). How long will humanity survive? Can you change the calculations so that we win?

This fantastic calculator will help you determine the rate of a zombie apocalypse. Figure out what it will take for humanity to survive! It also provides you with 5 tips for surviving the zombie apocalypse.