Dough Hydration Percentage Calculator

How to Use This Tool

Follow these simple steps to calculate your dough hydration percentage:

1. Enter your flour weight and select the appropriate unit (grams, ounces, or pounds) from the dropdown.
2. Enter your water weight and select the matching unit for consistency.
3. If using a sourdough starter or preferment, select "Yes" from the starter dropdown and enter the starter's flour and water weights with their units.
4. Click the "Calculate Hydration" button to generate your results.
5. Use the "Reset" button to clear all fields, or "Copy Results" to save your calculations to your clipboard.

Formula and Logic

Dough hydration is the ratio of total water weight to total flour weight, expressed as a percentage. The core formula is:

(Total Water Weight ÷ Total Flour Weight) × 100 = Hydration Percentage

Total water includes both directly added water and water present in preferments like sourdough starter. Total flour includes directly added flour and flour in preferments. All measurements are converted to grams for calculation regardless of your selected input units, ensuring consistent results across all unit types.

Practical Notes

For home baking, most standard bread recipes fall between 60% and 80% hydration. Use these benchmarks to guide your dough adjustments:

• Below 60%: Stiff, low-moisture dough ideal for bagels, pretzels, and dense sandwich bread.
• 60-70%: Medium hydration dough easy to handle, perfect for pizza crust, dinner rolls, and soft sandwich bread.
• 70-85%: High hydration dough that produces open, airy crumbs common in artisan sourdough and country loaves.
• Above 85%: Very high hydration dough that is sticky and wet, best for ciabatta, focaccia, and no-knead breads.

Always measure ingredients by weight instead of volume for accuracy. A cup of flour can vary by up to 20% in weight depending on how tightly it is packed. If substituting all-purpose flour for bread flour, reduce water by 1-2% as bread flour absorbs more liquid.

Why This Tool Is Useful

Small changes in flour and water ratios drastically affect dough texture, rise, and final crumb. This tool eliminates guesswork for home bakers, providing precise hydration percentages to adjust recipes to your handling preferences or environmental conditions. It saves time when scaling recipes up or down, converting between units, or tweaking sourdough starter ratios. Whether you are a beginner learning to bake bread or an experienced cook perfecting your pizza dough, this calculator ensures consistent, repeatable results.

Frequently Asked Questions

What is a good hydration percentage for beginner bread bakers?

Beginners should start with 65-70% hydration doughs, which are easier to handle than higher hydration options. These produce reliable sandwich bread or pizza dough with minimal sticking, making them ideal for learning kneading and shaping techniques.

Do I need to include sourdough starter in the calculation?

Only include starter if your recipe uses a preferment. Sourdough starter is typically 100% hydration (equal parts flour and water by weight), so omitting it will give an inaccurate hydration reading for sourdough recipes. If using a starter with a different ratio, enter its exact flour and water weights for precise results.

Can I use volume measurements (cups) instead of weight?

This tool only accepts weight measurements because volume measurements are inconsistent. A cup of flour can weigh anywhere from 120g to 150g depending on how packed it is. For accurate results, always use a kitchen scale to measure flour and water by weight.

Additional Guidance

Adjust hydration based on your kitchen's humidity: increase water by 1-2% in dry climates, decrease by 1-2% in very humid environments. If dough feels too sticky during kneading, add flour 1 tablespoon at a time, then recalculate hydration to track changes. For sourdough bakers, note that starter hydration can vary, so always weigh your starter's flour and water separately if it is not a 100% hydration starter. Store leftover dough in an airtight container in the fridge for up to 3 days, and recalculate hydration if you add more flour or water when reheating.