Size a cake is a great little utility for scaling a recipe to any size. All you need to do is set the size and shape of pan that your existing recipe requires, edit the ingredient list to add as many items as you would like to scale and then decide the size, shape and number of layers your cake should have. The app does the rest! Simple conversions from a 6inch round 2 layer cake to a 10inch square 3 layer cake can be done in seconds, saving you valuable baking time!