The Pizza Area Theorem

Pizza area follows A = πr², so doubling the diameter quadruples the area. A 14-inch pizza (153.9 in²) is 96% larger than a 10-inch (78.5 in²) — nearly double the food for typically 50% more money. That's why the biggest pie is usually, but not always, the best value.

Price per Square Inch

The fair comparison is price divided by area: dollars per square inch. A 10-inch at $12 costs $0.153/in²; a 14-inch at $18 costs $0.117/in² — the 14-inch is 23.5% cheaper per bite. Adding crust width makes the comparison stricter, measuring only the cheese-and-topping zone you actually want.

When the Big Pizza Loses

Deals can flip the math. A discounted small pizza or a premium-priced large one will show up as the worse value once you compute $/in². This calculator also reports savings as a percentage of the more expensive option, so you can see exactly how much the winner saves you.