How Much Pizza Dough Per Pizza?

Dough follows area, not diameter

Your 12-inch pizza uses a 250 g ball and it's perfect. You want to make it 16 inches.

The instinct is to scale by the diameter: 16 ÷ 12 is 1.33, so 333 g. That's wrong, and it's wrong in the direction that ruins the pizza.

A circle's area grows with the square of the radius. So the scale factor is 1.33 squared — 1.78. You need 444 g, not 333.

Scale by diameter and you end up with about three quarters of the dough you need. The base tears before it reaches the edge, and it gets blamed on the flour or the stretching technique rather than on the arithmetic.

The tool shows Dough ball for the new size next to If you scaled by diameter instead, so the gap is visible rather than described.

The ratios worth knowing

Change	Multiply dough by
10 → 12 in	1.44
12 → 14 in	1.36
12 → 16 in	1.78
12 → 18 in	2.25
14 → 16 in	1.31
16 → 12 in	0.56

The rule underneath all of them: (new ÷ old) squared.

Notice how fast it moves. Two inches doesn't sound like much, and 12 → 14 is already 36% more dough.

Why it starts from your dough ball, not a recommendation

There is no correct weight for a 12-inch pizza.

It depends on how thin you stretch, how much rim you leave, whether you're baking in a domestic oven or a deck oven at 450°C, and what you personally think a good base is. Any number a calculator asserted there would be somebody's preference dressed up as a fact.

So this one takes a size you already make and a dough ball weight that works at that size, and scales geometrically from there. The scaling is arithmetic and correct by construction. The judgement stays with you.

If you don't have a starting point yet: make one pizza at any weight, decide what you'd change, and use the corrected figure from then on.

Thickness factor is how you compare recipes

A 300 g ball tells you nothing on its own. It's generous at 10 inches and thin at 16.

Thickness factor — dough weight divided by area — means the same thing at every size. Two recipes with the same thickness factor give you the same thickness of base whatever diameter each one makes.

That's the only fair way to ask whether someone else's dough is thinner than yours. It's shown here in grams per square inch; most pizza forums quote ounces per square inch, so divide by 28.35 to compare.

There's a useful sanity check built into it: scale a dough correctly by area and the thickness factor doesn't change. If yours moves when you change the target size, the scaling is wrong.

Working back to flour and water

Once you have a total, the split is baker's percentage in reverse.

Flour is 100%, and water, salt and yeast are percentages of the flour. So:

total dough = flour × (1 + hydration + salt + yeast)

Rearranged, Flour is the total divided by that bracket, and everything else follows from the flour. The tool does this for the whole batch at once.

The percentages are inputs because pizza styles differ enormously — a Neapolitan dough, a New York dough and a pan dough are all correct at hydrations nowhere near each other, and the yeast quantity depends entirely on how long and how cold you intend to ferment.

Hydration doesn't change the ball weight

Worth stating plainly, because it surprises people: changing the hydration moves Water and Flour but leaves Dough ball for the new size alone.

That's correct. The ball weight is set by how much area you're covering and how thick you want it. Hydration changes what that weight is made of — a wetter dough is more water and less flour for the same total.

It does change how the dough handles and how willingly it stretches, which is technique rather than arithmetic.

Rectangular pans

Convert the pan to an equivalent circle:

1. Work out the pan's area in square inches
2. Divide by 3.14159
3. Take the square root — that's your radius
4. Double it and enter that as the target diameter

A 12 × 16 inch pan is 192 square inches, which is the same area as a round pizza of about 15.6 inches. The dough doesn't know what shape the tin is; it only cares how much area it has to cover.

One practical margin

Some dough stays on the bowl, the bench and your hands.

For two or three pizzas it isn't worth the flour. For a large batch where you want every ball on weight, add a couple of percent to the total and accept a small offcut — that's much better than discovering the shortfall on your last ball, when there's nothing left to take it from.