Pizza Comparison Calculator
Compare pizza deals by price per unit of area to find which one is genuinely the best value.
How to use it
- Add each pizza Enter its diameter and price.
- Set the quantity For multi-pizza deals, raise the quantity.
- See the best value The lowest price per area is highlighted.
Examples
| 10" vs 14" | 14" wins |
|---|---|
| same price | bigger is better |
About this tool
A large pizza nearly always beats two smalls, but it’s hard to see by how much without the maths. This calculator compares any number of pizzas by their price per unit of area and highlights the best-value option.
The key insight is that area grows with the square of the diameter, so a pizza that’s only a little wider holds a lot more food. Enter the sizes and prices — including multi-buy deals — and let the tool reveal the smartest order. It runs entirely in your browser.
Frequently asked questions
Why compare by area?
Pizza is priced per pizza, but you eat the area. Because area grows with the square of the diameter, a slightly bigger pizza is often much better value.
Does a bigger pizza really win?
Usually. Doubling the diameter quadruples the area, so large pizzas tend to be far cheaper per bite than small ones.
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Updated June 14, 2026