The pizza dough calculator above works out flour, water, salt, yeast, oil and sugar for a specific number of dough balls at a specific size. It runs on baker's percentages, which is how every professional dough formula is written: flour is 100 percent and everything else is a share of the flour weight. That is what makes the same recipe work for two pizzas or twenty without any of the ratios drifting.
Arb Digital builds free calculators for the practical arithmetic that sits between a recipe and an actual result. The part people most often get wrong here is not the percentages, it is the sizing: dough requirement follows the area of the pizza, and area grows with the square of the diameter. That single relationship is why a recipe scaled from a 10 inch to a 14 inch base by eye always comes out thin and tearing at the middle.
What This Pizza Dough Calculator Does
Tell it how many pizzas you want. Then size them either by diameter, in which case the tool computes the dough ball weight from the area and a thickness factor, or by ball weight if you already know the number you like. Set hydration, salt, yeast, oil and sugar as percentages of flour, and it returns every ingredient in grams plus the total dough weight and the weight of each individual ball.
The bars underneath show each ingredient as a share of the finished dough, which is a quick sanity check that the formula is what you meant. The fourth result box is a yeast suggestion derived from your planned proof time using the standard inverse relationship — roughly halve the yeast and roughly double the time at the same temperature. It is deliberately separate from the recipe, because it is a starting point rather than a computed fact, and temperature matters at least as much as time.
Two boundaries. Our pizza size comparison tool compares pizzas you are buying — diameter against price, to find which size is genuinely better value. This page never touches price; it outputs a dough recipe you make. And our baker's percentage calculator covers the same percentage system for bread, anchored on loaves and total dough weight rather than on pizza diameter and thickness factor.
How to Use It
- Set the number of pizzas. Make one or two more than you need — dough freezes well after balling and it is the cheapest insurance against a torn base.
- Choose diameter or ball weight. Diameter with a thickness factor is the more flexible route because it adapts automatically when you change size.
- Pick a thickness factor. Around 0.08 gives a thin crisp base, 0.10 a fuller rim, and 0.13 or more moves toward a pan-style dough that is pressed into a tray rather than stretched.
- Set hydration for your oven, not for the internet. Very high hydration is built for very high heat. A domestic oven at its maximum usually handles a lower figure better.
- Enter your planned proof time to see the yeast suggestion, then adjust the yeast field if you want to follow it.
The Formula and How It Is Calculated
Sizing by diameter uses the thickness factor convention, which is ounces of dough per square inch of finished pizza:
Dough per ball (oz) = π × (diameter ÷ 2)² × thickness factor
Grams follow by multiplying by 28.3495. From there the recipe is pure baker's percentage. With the percentages summing to S — that is 100 for the flour plus hydration plus salt plus yeast plus oil plus sugar — the flour needed for a total dough weight D is:
Flour = D × 100 ÷ S, and every other ingredient is flour × its percentage ÷ 100.
Work through the default. Four 12 inch pizzas at a thickness factor of 0.085: the area of one is π × 6² = 113.10 square inches, so each ball is 113.10 × 0.085 = 9.61 ounces, or 272.5 grams. Four of them is 1,090.1 grams of dough. The percentages are 62 hydration, 2.5 salt, 0.3 yeast and 2 oil, so S = 100 + 62 + 2.5 + 0.3 + 2 = 166.8. Flour is 1,090.1 × 100 ÷ 166.8 = 653.6 grams. Water is 62 percent of that, 405.2 grams. Salt is 16.3 grams, yeast 2.0 grams and oil 13.1 grams. Those six numbers add back to 1,090.1 grams, which is the check.
Why Dough Scales With Area, Not Diameter
This is the single most useful thing on the page. A circle's area is proportional to the square of its diameter, so increasing the diameter by half increases the area by a factor of 2.25. A 10 inch base has 78.5 square inches; a 12 inch has 113.1; a 14 inch has 153.9; a 16 inch has 201.1. Going from 12 to 16 inches — which sounds like a modest step up — needs 78 percent more dough for the same thickness.
People routinely get this wrong in both directions. Scaling a 12 inch recipe up to 16 inches by adding a third more dough gives a base that is noticeably thinner and much more likely to tear when it is stretched. Scaling a 14 inch recipe down to 10 inches by taking off a third leaves a thick, doughy base that will not cook through in the middle before the edge burns.
The thickness factor exists precisely so that this stops being a judgement call. Fix the factor and the dough weight follows the area automatically, which is why professional formulas are written that way. If you want to check the geometry directly, our circle calculator computes area from diameter, and our pizza size comparison tool shows the same maths applied to buying decisions.
Hydration Should Match Your Oven, Not a Photograph
Hydration is water as a percentage of flour weight, and it determines how slack the dough is, how open the crumb becomes, and how quickly the base sets in the oven. The temptation is to copy the very high figures used for Neapolitan pizza, which is a mistake unless you also have the oven for it.
A wood-fired or dedicated pizza oven running far above domestic temperatures cooks a pizza in a minute or two. At that speed, a wet dough flashes to steam, puffs violently and sets before it can go soggy. A domestic oven at its maximum takes many times longer, and a very wet dough spends that whole time slowly losing structure under a wet topping. The result is the pale, floppy centre that home bakers blame on their technique.
The practical guidance is to start lower than the internet suggests and move up only if the base is coming out dry. A dough in the low sixties handles easily, tolerates a longer bake and is far more forgiving to stretch. Raising a stone or steel to the top of a domestic oven and preheating it thoroughly buys more improvement than raising hydration does, because it attacks the actual constraint, which is heat into the base.
Yeast, Time and Temperature Are One Setting
A yeast percentage on its own is close to meaningless. The same dough can be raised with a relatively large amount of yeast in a couple of hours, or with a fraction of that over a long cold rest in the fridge, and the slow version will taste better because fermentation flavour needs time that a fast rise does not give it.
The working relationship is inverse: at a constant temperature, roughly halving the yeast roughly doubles the time to the same rise. That is what the suggestion box on this page uses, and it is why the number falls sharply as you extend the proof. Temperature then modifies everything again — a kitchen at the warm end of normal ferments far faster than a cool one, and a fridge slows things down by an order of magnitude rather than a little.
Yeast types are not interchangeable gram for gram either. Instant yeast is the most concentrated of the common forms, active dry is a little weaker, and fresh yeast is much weaker by weight because most of its mass is water. If a recipe specifies fresh yeast and you have instant, you need substantially less than the stated weight rather than the same amount. Whichever you use, judge the dough by how much it has risen and how it feels, not by the clock, since your kitchen is not the kitchen the recipe was written in. Our temperature converter is handy when a formula quotes a target dough temperature in the other scale.
Weighing, Units and a Note on Raw Dough
Everything on this page is by weight, and that is not fussiness. Flour measured by volume varies substantially with how it was scooped and settled, and a variation of that size changes hydration enough to change the pizza. Water is easy, since one millilitre weighs almost exactly one gram at kitchen temperatures, so a single scale handles both sides. Our cooking measurement converter deals with recipes that insist on volume, and the grams to ounces converter and weight converter handle unit changes. The definitions behind those units sit with the NIST Office of Weights and Measures, and ingredient composition data is published in USDA FoodData Central if you want to compare flours by protein.
One safety point belongs on any dough page. Flour is a raw agricultural product, not a ready-to-eat one, and it has been linked to foodborne illness outbreaks. Raw dough should not be tasted, and hands, bowls and surfaces should be washed after handling it. The FDA sets out the reasoning and the handling steps in its guidance on handling flour safely.
Arb Digital publishes hundreds of free calculators across food, health, finance and maths — no sign-up, no limits. If something you need is missing, tell us and we will look at building it.
Browse All Free Tools Suggest a ToolCommon Mistakes to Avoid
- Scaling dough by diameter — area grows with the square, so a 16 inch base needs 78 percent more dough than a 12 inch one, not 33 percent.
- Copying very high hydration into a domestic oven — wet doughs are built for very fast, very hot bakes. In a slower oven they go pale and floppy.
- Swapping yeast types gram for gram — fresh yeast is mostly water and is far weaker by weight than instant, so a straight substitution over-ferments or under-ferments the dough.
- Following the clock instead of the dough — proof time is a function of temperature. Judge by rise and feel, and treat any stated time as an estimate for a kitchen that is not yours.
- Making exactly as many balls as guests — one will tear or stick. Dough balls freeze well, so a spare costs almost nothing.
Related Free Tools From Arb Digital
Apply the same percentage system to bread with the baker's percentage calculator, compare pizzas you are buying with the pizza size comparison tool, and check the geometry directly with the circle calculator. For units, the cooking measurement converter, weight converter and temperature converter cover the usual conversions, and the free online tools hub lists everything else.
Frequently Asked Questions
At a thickness factor of 0.085 ounces per square inch, a 12 inch pizza has 113.1 square inches of area and needs about 9.6 ounces, or roughly 272 grams of dough. Thinner styles use less and pan styles use considerably more, which is exactly what the thickness factor lets you set.
It is the weight of dough per square inch of finished pizza, expressed in ounces. Because it is tied to area rather than diameter, it keeps the base the same thickness at any size. Around 0.08 is thin and crisp, 0.10 gives a fuller rim, and 0.13 upward moves toward pan pizza.
It depends on your oven more than on the style. Very high hydration is designed for very hot, very fast bakes where the water flashes to steam before the base can soften. In a domestic oven a lower hydration in the low sixties handles more easily and holds up over the longer bake time.
Because flour is the base, not the total. Flour is 100 percent by definition and every other ingredient is expressed relative to it, so a dough at 62 percent hydration with 2.5 percent salt, 0.3 percent yeast and 2 percent oil sums to 166.8 percent of the flour weight.
Far less than for a same-day one. At a constant temperature, roughly halving the yeast roughly doubles the time to the same rise, which is the relationship the suggestion box uses. Temperature changes it again, so a cold overnight rest in the fridge needs less yeast still than an overnight rise on the counter.
Not gram for gram. Fresh yeast is mostly water, so it is much weaker by weight than instant yeast, and active dry sits between the two. Using the same weight of fresh in place of instant will under-ferment the dough, while the reverse substitution will over-ferment it badly.
No. Traditional Neapolitan formulas are flour, water, salt and yeast only. Oil softens the crumb, helps the base brown and makes the dough slightly easier to stretch, which is why it appears in many American styles. Set it to zero for a lean dough and the calculator adjusts the rest of the formula accordingly.
Making one or two spare balls is worth it, since a torn base is common and dough freezes well once balled. Freeze it after the bulk rise, thaw it in the fridge, then let it come up to room temperature before stretching so it relaxes enough to open properly.
This calculator is provided for general education and reference. It describes how a dough formula is scaled and is not food safety guidance; raw flour and raw dough should not be tasted, and you should follow the food safety advice issued by your national authority.
