Know your dough · Free calculator
Bread Recipe Hydration Calculator
Hydration is total water as a percentage of total flour — but "total water" is sneakier than it looks. A 100%-hydration leaven is half water by weight, and milk, yogurt, or beer bring their own water too. This calculator adds those hidden contributions so the number you get reflects the real dough, not just what you poured from the jug.
Below the calculator you’ll find a practical reference for what each hydration range means for handling, crumb, and the breads it suits.
? Calculate total bread recipe hydration, including water, other liquids, and leaven contribution.
| Parameter | Value |
|---|---|
| ? Recipe Water | |
| ? Other Liquid | |
| ? Recipe Flour | |
| ? Leaven Amount | |
| ? Leaven Hydration | % |
| ? Bread Recipe Hydration | -- % |
Hydration Quick Reference
Where your dough lands on the hydration scale shapes handling, crumb, and which breads it suits. These are practical ranges, not hard rules — flour strength and milling shift them.
| Hydration | Feel & handling | Crumb | Typical breads |
|---|---|---|---|
| 50–57% | Stiff, firm, very easy to shape. Machine-friendly. | Tight, uniform, close. | Bagels, pretzels, some pan breads, grissini. |
| 58–65% | Firm but supple; forgiving for beginners. | Even, moderately close. | Baguettes, many sandwich loaves, enriched doughs, brioche-adjacent. |
| 66–72% | The everyday sweet spot; slightly tacky, workable by hand. | Moderately open, good structure. | Everyday sourdough, pain de campagne, most rustic loaves. |
| 73–80% | Slack and sticky; needs coil/stretch-and-folds and confidence. | Open, glossy, irregular holes. | Rustic country boules, higher-hydration sourdough, pizza. |
| 81–90%+ | Very wet, batter-leaning; demands skilled handling and strong flour. | Wild, very open, custardy. | Ciabatta, focaccia, some pan-supported ryes. |
Handy Hydration Facts
- Flour protein sets the ceiling. Strong bread flour (12–14% protein) carries 80%+ comfortably; a weak all-purpose can turn to soup past ~70%.
- Whole grains drink more. Whole wheat and rye absorb more water than white flour, so the same percentage feels stiffer — many bakers add 3–5% water when going wholegrain.
- Fresh-milled flour needs extra water and often a longer rest (autolyse) to fully hydrate the bran and germ.
- The leaven hides water. A 100%-hydration leaven is half water by weight, so its water counts toward true dough hydration — this calculator already includes it.
- Higher hydration ≠ better bread. It changes the style, not the quality. A tight 60% bagel and an open 85% ciabatta are both "right" for what they are.
- Salt and hydration interact. Salt tightens gluten and slows fermentation, which can make a wet dough feel more manageable.
- Weather matters. Humid days effectively raise hydration; dry, hot kitchens pull moisture out — adjust by feel, not just by number.
Worked example
Say your recipe calls for 500 g flour, 350 g water, and 100 g of leaven at 100% hydration. The naive hydration is 350 ÷ 500 = 70% — but that 100 g leaven is hiding 50 g of water and 50 g of flour. True hydration is (350 + 50) ÷ (500 + 50) = 72.7%. Enter the same recipe above and watch the calculator do this accounting for every liquid, including milk, eggs, or oil if your recipe has them.
Where it fits in the bake
Hydration is the first number to check when a recipe misbehaves — it drives how the dough feels at every stage of the Baker's Process, from how sticky the initial mix is to how open the final crumb bakes. Compare a recipe's true hydration against the reference chart in the More section before you commit a Saturday to it.
Bread Recipe Hydration Calculator FAQ
What hydration should sourdough be?
Most artisan sourdough lives between 65% and 80%. Beginners do well at 65–70%, where the dough is firm enough to shape confidently; open-crumb styles like Tartine loaves run 75–85%. Above roughly 85%, the gluten struggles to carry the weight of the water.
Does starter or leaven count toward hydration?
Yes — and ignoring it is the most common hydration mistake. A 100% hydration leaven is half water and half flour, and both halves belong in the calculation. That's the whole reason this calculator exists: it computes true dough hydration from every liquid in the recipe.
Is higher hydration better?
No — it's a style choice with trade-offs. More water means a more open crumb and thinner crust, but also a stickier, harder-to-shape dough and faster fermentation. A well-fermented 68% loaf beats an over-hydrated 82% puddle every time.
Do milk, eggs, or oil count as water?
Partially. Milk is roughly 87% water, a large egg about 75%, and oil contributes no water at all. The calculator's other-liquids inputs handle this so an enriched dough's hydration reflects reality, not label weight.
Why does my 75% dough feel stiffer than someone else’s?
Flour absorbency varies. Whole wheat drinks 10–15% more water than white flour, and fresh-milled or high-extraction flours drink more still. Hydration numbers compare doughs on the same flour — across flours, trust the feel and adjust.
Does hydration change how I bake the loaf?
Mostly it changes what happens before the oven — but wetter doughs do carry more steam of their own, brown a little slower, and benefit from the full covered phase in a Dutch oven. If a high-hydration crumb bakes up gummy, the fix is usually a longer bake, not less water.
Want to know why this works? Every model and constant behind this calculator is explained, derived, and put to work in The Book of Sourjoe — the interactive book this calculator was built for.
These calculators are just the crust. Check out the Public Preview of the Sourjoe App — The Book of Sourjoe, recipes, and every baking tool in one place.
Questions? Comments? Send us a note at info@sourjoe.com.