Dough Hydration Calculator
Enter any two of flour weight, water weight, and hydration percentage — the calculator solves the third and tells you what kind of dumpling dough you’ve got.
Dough hydration
This reads as a standard gyoza/jiaozi dough.
Reading a hydration percentage
Hydration is simply the water weight expressed as a percentage of the flour weight: 250g water with 500g flour is 50% hydration. It’s a ratio, not an absolute amount, so it scales cleanly — a 50%-hydration dough stays 50% whether you’re making a single batch of 20 wrappers or quadrupling it for a dumpling party.
Dumpling doughs generally run lower than bread doughs because they need to roll out thin and hold a folded pleat without collapsing. A stiffer, lower-hydration dough (under 45%) is common for skins that get fried or need a firm bite, like wonton wrappers. A softer dough in the mid-50s to mid-60s percent range is typical for gyoza, jiaozi, and momo, and pierogi dough often pushes higher still since it’s usually boiled rather than pan-fried.
Frequently Asked Questions
What is dough hydration, and why does it matter for dumplings?
Hydration is the baker's-percentage way of describing a dough: water weight divided by flour weight, times 100. It matters because dumpling doughs sit in a fairly narrow band — roughly 30% to 75% — and where a dough falls in that band predicts how it will behave: lower hydration gives a stiffer, more elastic dough that holds a sharp pleat (wonton and jiaozi skins), while higher hydration gives a softer, more extensible dough that's easier to roll thin but stickier to handle (pierogi and some momo doughs).
What hydration should I use for gyoza or jiaozi wrappers?
Most gyoza and jiaozi doughs land around 45-55% hydration — enough water to bring the flour together into a smooth, pliable dough that still holds a crisp pleat and doesn't tear when folded. This calculator labels results in that range as a standard gyoza/jiaozi dough.
Why does my dough feel too dry or too wet at the hydration this tool gives me?
Flour absorbency varies by brand, protein content, and even humidity on the day, so the same hydration percentage can feel slightly different batch to batch. Treat the calculated water weight as a starting point, then adjust by a tablespoon of flour or water at a time until the dough is smooth and no longer tacky to the touch.
Can I use this for wonton wrappers or only round dumpling skins?
Yes — the hydration ratio is the same underlying idea regardless of whether you cut the dough into rounds or squares. Wonton skins are typically rolled thinner from a slightly stiffer (lower-hydration) dough so they crisp well when fried and hold together in soup.
Cooking reference only. Flour absorbency varies by brand and humidity, so treat the water weight as a starting point and adjust by feel.