Neapolitan Fit Checker

Many "12-inch" pizza ovens can't actually fit a true 12-inch Neapolitan pizza. The dome is too low for the puff. Check the math before you buy.

Some links on this page are Amazon affiliate links. We earn a small commission if you buy through them — at no extra cost to you.

What size pizza do you want to make?

A traditional Neapolitan is 11–12 inches. NY-style is 14–18 inches. We'll calculate which ovens have stone diameter and dome height for the puff.

Or enter a custom size:

Why this matters

The "12-inch oven" label refers to the stone diameter — the cooking surface. But a true Neapolitan pizza puffs up to 2-3 inches at the cornicione (the raised edge). If the oven dome is too low above the stone, the cornicione hits the dome, deflates, and you end up with a flat-top.

A 12-inch raw dough disc + 2-3 inches of cornicione clearance = the dome needs at least 8 inches of usable height above the stone to avoid this issue. Many compact ovens come up short.