When to use this calculator
Find water mass needed for a selected flour mass and hydration. Accounts for flour and water only; other ingredients may add moisture.
Explore the baking & dough calculators for other questions in this topic. For a related calculation, use the Dough Yield Calculator: Find dough mass from flour mass and summed baker’s percentages of other ingredients.
PUTTING IT INTO PRACTICE
Dough Water: a worked example
The values below are an illustrative example, not a recommendation. Replace them with measurements or assumptions that match your question.
| Input | Example value |
|---|---|
| Flour mass (g) | 500 |
| Target hydration (%) | 70 |
| Result | 350 g |
- Check the input labels and enter the example values above.
- Apply the relationship: Water = flour × hydration ÷ 100.
- The result is 350 g, rounded for display.
How to interpret your result
Accounts for flour and water only; other ingredients may add moisture.
Baker’s percentages use flour as their denominator. Include the flour and water already present in a starter when calculating a whole dough. Scaling a pan recipe by area assumes similar batter depth.
Frequently asked questions
Why can baker’s percentages total more than 100%?
Flour alone is defined as 100%. All other ingredient percentages are measured relative to that flour mass.
How do I use the dough water calculator?
Enter flour mass (g), target hydration (%). The result updates automatically. Use the units shown beside each input; the example values illustrate the method.
Which formula does this calculator use?
Water = flour × hydration ÷ 100.
What should I check before using the result?
Accounts for flour and water only; other ingredients may add moisture.
How are results rounded?
Scalar numbers display up to six decimal places, with scientific notation for very large or small values. Text, fraction, date and schedule outputs use the format described on the tool. Intermediate calculations use JavaScript floating-point arithmetic. Keep sensible precision for your measurements.
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