Quick answer
Baker's percentage = ingredient weight ÷ flour weight × 100, so flour is always 100%. With 1,000 g flour, 700 g water, 20 g salt and 10 g yeast, the percentages are 70%, 2% and 1%, for a dough of 1,730 g.
Enter the flour weight and the other ingredient weights. The calculator returns each as a percentage of flour and the total dough weight.
Related tools: Cake Pan Size Conversion Calculator: Batter scale factor between two pan sizes. Dough Hydration Calculator: Hydration percentage of a dough. Salt Percentage Calculator: Salt as a percentage of the total weight.
How to use the Baker's Percentage Calculator
- Enter flour weight (g) (above 0).
- Type other ingredient weights (g), for example 700, 20, 10.
- Press Calculate to see the result, and use Reset to start again.
| Input | What to enter | Allowed values |
|---|---|---|
| Flour weight | A number, in g | > 0 |
| Other ingredient weights (g) | Text, such as 700, 20, 10 | — |
Formula and method
Formula
baker's % = ingredient weight ÷ flour weight × 100
IEEE-754 double precision; shown to the decimals indicated.
Flour is always 100%.
Worked examples
This example is verified: each one is an automated test case that the live calculator must reproduce exactly.
Example 1
Inputs: Flour weight = 1000; Other ingredient weights (g) = 700, 20, 10.
| Result | Value |
|---|---|
| Flour | 100% |
| Ingredient percentages | 70%, 2%, 1% |
| Total dough weight | 1,730 |
The first line is the headline result (flour). Below it the baker's Percentage Calculator lists ingredient percentages and total dough weight, which describe the same case from other angles. IEEE-754 double precision; shown to the decimals indicated.
Why bakers use it
Because every ingredient is relative to flour, a recipe scales to any batch size and can be compared to others. A bread at 70% hydration with 2% salt is easy to recognise whatever the quantity.
Use weights
Cups and spoons vary, so the method relies on weights. Total percent will exceed 100 because flour is 100% on its own. If you use several flours, add them together as the 100%.
How the result changes with flour weight
Holding every other input at the first worked example, this table changes only flour weight. It shows how sensitive the answer is to that one value; each row was produced by running this calculator.
| Flour weight | Flour | Ingredient percentages | Total dough weight |
|---|---|---|---|
| 500 | 100% | 140%, 4%, 2% | 1,230 |
| 1000 | 100% | 70%, 2%, 1% | 1,730 |
| 2000 | 100% | 35%, 1%, 0.5% | 2,730 |
| 4000 | 100% | 17.5%, 0.5%, 0.25% | 4,730 |
What happens with invalid input
These messages are produced by the calculator itself, so you know what to fix.
- Flour weight: entering "0" shows "Flour weight must be greater than 0." beside that field and no result.
- Other ingredient weights (g): left empty shows "Enter other ingredient weights (g)." beside that field and no result.
Choosing between the Baker's Percentage Calculator and similar calculators
Each row shows what a related calculator on this site asks for and what it returns, so you can pick the one that matches your question.
| Calculator | You enter | It returns |
|---|---|---|
| [Cake Pan Size Conversion Calculator](/cooking/cake-pan-size-conversion-calculator/) | original pan, original pan: diameter or length and new pan | Batter scale factor |
| [Dough Hydration Calculator](/cooking/dough-hydration-calculator/) | flour and water | Hydration |
| [Salt Percentage Calculator](/cooking/salt-percentage-calculator/) | salt and total weight | Salt |
| [Percentage Calculator](/math/percentage-calculator/) | what do you want to find?, a and b | 15% of 200 |
| [Percentage of a Percentage Calculator](/math/percentage-of-a-percentage-calculator/) | x and y | Result |
Background: cooking measurements
For baking, weight is more reliable than volume. A cup holds a fixed volume but its weight depends on the ingredient's density, and a cup of flour can vary by 20 to 30 grams depending on how it is scooped, so published gram-per-cup values for the same ingredient differ from site to site. Spoon and level flour if you must measure by volume.
Check which cup a recipe uses: the US cup is 236.588 mL, while a metric cup is 250 mL.
Assumptions and limitations
- Use weights, not volumes
Cooking times are guides. Use a food thermometer to confirm safe internal temperatures.
If a required value is empty, not a number, or outside its allowed range, the form marks that field with a message and shows no result instead of a misleading number. The automated checks deliberately try invalid entries for flour weight and other ingredient weights (g) to confirm this.
Frequently asked questions
What is hydration?
Water as a percentage of flour weight.
How much salt is typical?
About 1.8 to 2.2% of flour weight.
How do I scale a recipe?
Multiply the percentages by the new flour weight.
What does the Baker's Percentage Calculator calculate?
Each ingredient as a percentage of flour weight. It returns Flour, Ingredient percentages and Total dough weight.
What formula does the Baker's Percentage Calculator use?
baker's % = ingredient weight ÷ flour weight × 100. Flour is always 100%.
What do I need to enter in the baker's Percentage Calculator?
You enter Flour weight (g) and Other ingredient weights (g).
How is the result rounded or limited?
IEEE-754 double precision; shown to the decimals indicated. Use weights, not volumes.
What is an example of a baker's Percentage result?
With flour weight 1000 and other ingredient weights (g) 700, 20, 10, the flour is 100%.
Where does the method come from?
The method follows: Baker's percentage convention (flour = 100%).
Can I rely on this calculator for a decision?
Cooking times are guides. Use a food thermometer to confirm safe internal temperatures. For this calculator in particular: Use weights, not volumes.
Related calculators
- Cake Pan Size Conversion Calculator — Batter scale factor between two pan sizes.
- Dough Hydration Calculator — Hydration percentage of a dough.
- Salt Percentage Calculator — Salt as a percentage of the total weight.
- Percentage Calculator — Calculate a percentage of a number, what percent one number is of another, or the whole from a part.
- Percentage of a Percentage Calculator — Find X% of Y%, optionally applied to a base amount.
- Food Waste Percentage Calculator — Share of food that was wasted.
- Test Score Percentage Calculator — Percentage score from correct answers out of total questions.
- Recipe Scaling Calculator — Scale ingredient amounts to a different number of servings.
Sources
- Baker's percentage convention (flour = 100%)
Content last reviewed 2026-11-04. Formulas and worked examples are checked by automated tests against independently computed values.