THE NUMBERS, EXPLAINED
How to use this calculator.
Flour fractions are fractions of total dough mass, not baker’s percentages. All recipes use the same compatible flour stock.
Start with your inputs
Enter planned dough mass by recipe (kg), flour fraction of total dough by recipe (%), flour in stock (kg). Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Planned dough mass by recipe (kg) | 10,20 |
| Flour fraction of total dough by recipe (%) | 50,60 |
| Flour in stock (kg) | 15 |
A worked example
With the example inputs above, flour by recipe (kg) is 5, 12. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Flour by recipe (kg) | 5, 12 |
| Flour required (kg) | 17 |
| Flour shortage (kg) | 2 |
How this is calculated
Flour by recipe (kg)
Multiply each dough production mass by its flour fraction.
Flour required (kg)
Sum recipe flour requirements.
Flour shortage (kg)
Subtract stock from flour demand, floored at zero.
Symbols and units
- a
- Planned dough mass by recipe (kg)
- b
- Flour fraction of total dough by recipe (%)
- c
- Flour in stock (kg)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions and limits
Flour fractions are fractions of total dough mass, not baker’s percentages. All recipes use the same compatible flour stock.
Calculations use the values you enter. Blank or invalid inputs show an error instead of silently substituting zero. Results are displayed to useful precision; calculations retain the underlying numeric precision.
Questions about this tool
What does the result tell me?
Flour by recipe (kg); Flour required (kg); Flour shortage (kg). The result applies to the method and inputs described above. Check the units and assumptions before using it in a decision.
Why might another calculator differ?
Differences in units, rounding, timing or model definitions can produce different answers. Compare the input definitions and the method, rather than only the final number. For this tool: Flour fractions are fractions of total dough mass, not baker’s percentages. All recipes use the same compatible flour stock.
Are my inputs stored or sent to AI?
Calculations on this page happen in your browser. The separate AI question finder sends its submitted conversation to OpenAI; these calculator fields are not sent. Favourites and recent tool names are stored locally. A shared link contains the inputs you choose to include.
Further reading
OpenStax: Solve proportions and their applications ↗
Background reading; this does not imply endorsement or independent review of SumFizz.
Review status
Software example and browser checks are recorded in our quality report. No external expert review is claimed. Created with coding assistance; calculations run as ordinary browser code.
Read the quality report →