cooking calculator

Dough Hydration Calculator

Check current hydration and see how much water you need to hit a target percentage.

Results

Current hydration %
6500.00%
Water needed for target (g)
700.00
Add / remove this much water (g)
50.00

How to use this calculator

  1. Enter flour and water weights.
  2. Set a target hydration percentage.
  3. See current hydration, target water amount, and how much water to add/remove.

Inputs explained

Flour weight
Total flour in grams, including any preferment flour.
Water weight
Total water in grams, including preferment water.
Target hydration %
Desired hydration for your dough style.

How it works

Hydration % = water weight ÷ flour weight × 100. We also compute the water required for your target hydration so you can adjust on the fly.

Negative “add/remove” values mean you’ve already exceeded the target—remove water or add flour to rebalance.

Formula

Hydration % = (Water ÷ Flour) × 100
Water needed = Flour × (Target% ÷ 100)

When to use it

  • Adjusting a dough to match a desired hydration before mixing or during autolyse.
  • Troubleshooting a too-wet or too-dry mix by seeing exact adjustments.
  • Comparing dough styles (sandwich vs. artisan) for the same flour weight.

Tips & cautions

  • Include starter/preferment flour and water in the totals for accurate hydration.
  • Higher hydration often needs stronger flour and more folds; small changes matter.
  • If you overshoot water, add flour in small increments and recompute.
  • Does not account for water absorption differences between flour types.
  • Assumes a single flour; multi-flour blends may behave differently.
  • Temperature and fermentation time still determine proofing; hydration is just one factor.

Worked examples

65% dough aiming for 70%

  • 1,000 g flour + 650 g water = 65%
  • Target water = 700 g, so add 50 g

Too-wet mix

  • Flour 800 g, water 640 g = 80%
  • Target 70% → need 560 g water, remove 80 g or add flour.

Deep dive

This dough hydration calculator shows your current hydration and how much water to add or remove to hit a target. Enter flour and water weights (including preferment) and a target percent to get exact adjustments.

Use it to tune bread or pizza dough quickly—small hydration changes significantly affect handling and crumb. Adjust flour/water totals as needed if you overshoot.

FAQs

Should I count preferment water?
Yes. Include all flour and water contributions to get the true total hydration.
Does hydration affect baking time?
It influences oven spring and crumb, but bake time still depends on loaf size and oven temp. Use this calculator to dial in hydration, then follow recipe cues.
Can I apply this to pizza dough?
Absolutely. Common pizza hydrations are 60–75%; adjust based on flour strength and handling preferences.
What if my dough is too wet?
Use the additional water output. If negative, you’ve overshot—add flour gradually or reduce water to reach the target.
Does salt or oil change hydration?
Not in baker’s hydration math. Hydration is water ÷ flour; salt/fat affect handling but aren’t in the percentage.

Related calculators

Hydration numbers assume all flour and water are accounted for. Always adjust based on feel, humidity, and flour absorption.