Quick Answer: A pizza dough calculator is really just baker’s percentage — flour is always 100%, and every other ingredient is a percentage of that flour’s weight. Pick a hydration target for your style (55-62% for AVPN Neapolitan, ~65% for New York, 70-80% for Detroit or pan-style, per Ooni’s own dough-hydration guide), decide how many dough balls you need at 250-280g each, then do the math: total dough weight ÷ (1 + hydration% + salt% + yeast%) = flour weight, and every other ingredient scales off that. A digital kitchen scale is the only physical tool the math actually requires.

Every “pizza dough calculator” online — including the free one on Ooni’s own site — is doing the same handful of multiplications behind a nicer interface. Once you understand the formula, you can hit any dough-ball count or hydration target without a calculator at all, and you’ll immediately understand why two recipes that look completely different (a stiff Neapolitan ball vs. a slack Detroit-style slab) are really just the same math at different ratios.

Pizza dough math, by the numbers

The formula

Baker’s percentage: (ingredient weight ÷ flour weight) x 100 = percentage. Flour is always 100% by definition. So a dough with 1000g flour and 650g water is 65% hydration; add 20g salt and that’s 2% salt.

To go the other direction — from a target dough weight to actual gram amounts — rearrange it:

Flour weight = total dough weight ÷ (1 + hydration% + salt% + yeast%)

Once you have the flour weight, multiply it by each ingredient’s percentage to get water, salt, and yeast in grams.

Worked example: 4 dough balls, two styles

Say you want four 260g dough balls — a total dough weight of 1,040g. Here’s what that looks like at AVPN Neapolitan hydration (58%, salt 2.8%, minimal yeast for a long ferment) versus New York-style (65%, salt 2%, more yeast for a same-day rise):

StyleHydrationFlourWaterSaltYeast
Neapolitan (58%)58%646g375g18g~0.6g (24hr ferment)
New York (65%)65%621g404g12g~3g (same-day rise)

Both rows produce the same total dough weight and the same four balls — the only thing that changes is the ratio. Want six balls instead of four? Change 1,040g to whatever six 260g balls add up to and run the same division. That’s the entire trick behind every pizza dough calculator.

Digital Kitchen Scale (0.1g Resolution)

The one tool this math actually requires · from ~$15
  • Baker's percentage only works with weight — a cup of flour can vary 120-150g depending on how it's scooped, which throws off every ratio above.
  • 0.1g resolution matters most for salt and yeast, where a few grams either way changes fermentation speed and taste.
  • Cheaper and more useful long-term than any app or printed chart — every pizza dough calculator on earth is built around a scale, not instead of one.
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Hydration by style, at a glance

StyleHydrationFeelSource
Neapolitan55-62%Stiff, easy to hand-shapeAVPN disciplinare
New York~65%Soft, extensibleOoni dough-hydration guide
Detroit / pan-style70-80%Slack, sticky, spreads in the panOoni dough-hydration guide
Sicilian70-75%Open, airy crumbOoni dough-hydration guide

FAQ

See the questions below for how the percentages convert to grams, why volume measurements (cups) don’t work for this math, and what to do if your dough feels wrong even after following the numbers.


Bottom line: a pizza dough calculator isn’t a special tool — it’s baker’s percentage, where flour is 100% and everything else is a ratio of it. Nail the hydration for your style, weigh instead of scooping, and the same formula scales from two dough balls to twenty. For the actual dough technique once your numbers are set, see our Neapolitan pizza dough recipe; to give the finished balls a proper cold ferment, check our best pizza dough proofing box roundup; and if you’re kneading by machine instead of hand, our best stand mixer for pizza dough guide covers the low-speed settings that protect gluten development.