🍞 Dough Hydration Calculator
Calculate hydration percentage and get dough consistency tips
Use total flour weight including any starter flour if using sourdough
Include all liquid additions (milk, oil) if calculating total hydration
Add milk, oil, eggs, or other liquids here if included in your recipe
Hydration Results
Hydration Percentage
--%
Total Liquid Weight
--g
Flour Weight (Converted)
--g
Dough Consistency
--
Hydration Level
Tip: 1 ounce = 28.3495 grams, 1 pound = 453.592 grams. All inputs are converted to grams for calculation.
How to Use This Tool
Follow these simple steps to calculate your dough hydration percentage accurately:
- Enter the total weight of flour used in your recipe, including any flour from sourdough starter if applicable. Select the correct unit (grams, ounces, or pounds) from the dropdown next to the input.
- Enter the weight of water added to the dough, select the corresponding unit, and optionally add any other liquids (milk, oil, eggs) with their units.
- Select your dough type from the dropdown to get context-specific consistency references for common bread styles.
- Click the "Calculate Hydration" button to see your results, including hydration percentage, total liquid weight, and dough consistency.
- Use the "Reset" button to clear all inputs and start a new calculation, or "Copy Results" to save your results to your clipboard.
Formula and Logic
Dough hydration is calculated as the ratio of total liquid weight to flour weight, expressed as a percentage. The standard formula is:
Hydration % = (Total Liquid Weight / Flour Weight) × 100
All inputs are first converted to grams (the base unit) using standard conversion rates: 1 ounce = 28.3495 grams, 1 pound = 453.592 grams. Total liquid weight includes water plus any optional added liquids like milk or oil. The result is rounded to one decimal place for readability.
The dough consistency rating is determined by the calculated hydration percentage, with adjustments based on selected dough type for common reference ranges.
Practical Notes
Keep these real-world baking tips in mind when using your hydration results:
- Sourdough starter counts as both flour and liquid: if using a 100% hydration starter (equal parts flour and water), add half its weight to flour and half to liquid. For example, 200g of 100% starter adds 100g flour and 100g water.
- Hydration preferences vary by recipe: pizza dough typically ranges 55-65%, sandwich bread 60-70%, sourdough 65-80%, and ciabatta 75-85%. Adjust based on your desired dough texture.
- Ambient humidity affects dough: in very dry climates, you may need 1-2% higher hydration, while humid climates may require slightly less liquid.
- Whole wheat flour absorbs more liquid than white flour: increase hydration by 5-10% when substituting whole wheat for all-purpose flour.
- Always measure by weight, not volume: cup measurements for flour can vary by up to 30%, leading to inaccurate hydration calculations.
Why This Tool Is Useful
Home bakers often struggle to replicate consistent dough results when tweaking recipes or substituting ingredients. This tool eliminates guesswork by:
- Standardizing unit conversions so you don't have to calculate grams to ounces manually.
- Providing context for your hydration level based on common dough types, so you know if your ratio is appropriate for your recipe.
- Calculating total liquid including optional additions, which is critical for accurate results when using enriched doughs with milk or oil.
- Offering a visual progress bar to quickly see how your hydration compares to low, medium, and high ranges.
Frequently Asked Questions
What counts as liquid for hydration calculations?
Water is the primary liquid, but any pourable or mixable liquid added to the dough counts: milk, buttermilk, oil, melted butter, eggs (beaten), and honey or syrup (in small amounts). Dry ingredients like salt or sugar are not included in liquid weight.
How do I adjust hydration for sourdough starter?
For a 100% hydration starter (equal flour and water by weight), split the starter weight evenly between flour and liquid inputs. For example, 150g of starter adds 75g to flour and 75g to water. If your starter has a different hydration percentage, calculate the flour and water content of the starter first: (starter weight × (100 / (100 + hydration%))) for flour, and remaining weight for water.
Why is my dough stickier than the consistency rating suggests?
Consistency ratings are based on hydration percentage alone, but other factors affect dough texture: flour protein content (higher protein = more absorption), added fats (oil or butter reduce stickiness), and mixing time. If your dough is stickier than expected, reduce liquid by 1-2% in your next batch.
Additional Guidance
For best results, always use a digital kitchen scale to measure ingredients by weight. Volume measurements (cups, tablespoons) are inconsistent and will lead to inaccurate hydration calculations. When experimenting with new recipes, adjust liquid by 1-2% at a time to avoid overcorrecting. Keep a baking journal to track hydration levels and corresponding dough results, so you can refine your preferred ratios over time. If baking at high altitude, reduce liquid by 1-3% as lower air pressure causes liquids to evaporate faster during baking.