Did you know that one 18 inch pizza is more pizza than two 12 inch pizzas? It may sound like a lie, but if you work out the math, an 18 inch pizza has area of about 254 inches, while the two 12 inch pizzas have an area of about 226 inches. The advantage to knowing this, is that at most pizza places, it’s a lot cheaper to buy one 18 inch pizza than two 12 inch pizzas. Now go forth and use this knowledge to get the most pizza for your money.