Have you ever wasted precious ordering time on your pizza trying to figure out if you should order a medium and a large, two large, a small and a medium, and all just to make sure you're spending the right amount of money on your pizza?

If you're concerned with getting the most for your money you should always order a large pizza, according to new research.

Planet Money analyzed the price per pie from approximately four-thousand pizza parlors nationwide, and they say you get the most bang for your buck when you order a large. The findings across the board indicate the bigger the pizza, the cheaper the slice.

For example, one 18-inch pizza has roughly the same area as approximately two fourteen-inch pizzas or 5 eight-inch pizzas. So to get the same amount of pizza you get in an 18-inch pizza you'd have to spend an extra $5.29 on fourteen-inch pizzas, or an extra $23.09 on an eight-inch pizza.

So what's it gonna be?  Make it a large..Heavens..You're splurging anyway...just invite more people to the party!