THE NUMBERS, EXPLAINED
How to use this calculator.
One board below and above the stack, plus one board between books. All books have equal thickness and fit the platen footprint; pressure suitability is not assessed.
Start with your inputs
Enter closed book thickness (mm), pressing board thickness (mm), clear press opening (mm), books awaiting pressing (count). Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Closed book thickness (mm) | 20 |
| Pressing board thickness (mm) | 5 |
| Clear press opening (mm) | 100 |
| Books awaiting pressing (count) | 10 |
A worked example
With the example inputs above, books fitting one press batch is 3. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Books fitting one press batch | 3 |
| Press batches required | 4 |
| Full batch stack height (mm) | 80 |
How this is calculated
Books fitting one press batch
Fit book-plus-intermediate-board units after reserving one outer board.
Press batches required
Divide waiting books by stack capacity and round up.
Full batch stack height (mm)
Add all books and one more board than books.
Symbols and units
- a
- Closed book thickness (mm)
- b
- Pressing board thickness (mm)
- c
- Clear press opening (mm)
- d
- Books awaiting pressing (count)
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
One board below and above the stack, plus one board between books. All books have equal thickness and fit the platen footprint; pressure suitability is not assessed.
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?
Books fitting one press batch; Press batches required; Full batch stack height (mm). 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: One board below and above the stack, plus one board between books. All books have equal thickness and fit the platen footprint; pressure suitability is not assessed.
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 Prealgebra 2e — arithmetic and proportions ↗
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 →