THE NUMBERS, EXPLAINED
How to use this calculator.
Uses a measured full-coverage ink yield and scales linearly by your equivalent coverage. Coverage may exceed 100% when multiple layers or colours are combined. It excludes startup loss, ink left in equipment and substrate-specific behavior beyond the measured yield.
Start with your inputs
Enter printed area per copy (m²), equivalent full-coverage percentage (%), measured full-coverage yield (m² per litre), printed copies, container size (litres). Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Printed area per copy (m²) | 0.1 |
| Equivalent full-coverage percentage (%) | 50 |
| Measured full-coverage yield (m² per litre) | 100 |
| Printed copies | 2000 |
| Container size (litres) | 0.5 |
A worked example
With the example inputs above, equivalent full-coverage area (m²) is 100. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Equivalent full-coverage area (m²) | 100 |
| Estimated ink (litres) | 1 |
| Whole containers | 2 |
| Purchased ink (litres) | 1 |
How this is calculated
Equivalent full-coverage area (m²)
Area per copy × coverage percentage/100 × copies.
Estimated ink (litres)
Equivalent full-coverage area ÷ measured yield.
Whole containers
Round up estimated litres ÷ container size.
Purchased ink (litres)
Container count × container size.
Symbols and units
- a
- Printed area per copy (m²)
- b
- Equivalent full-coverage percentage (%)
- c
- Measured full-coverage yield (m² per litre)
- d
- Printed copies
- e
- Container size (litres)
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
Uses a measured full-coverage ink yield and scales linearly by your equivalent coverage. Coverage may exceed 100% when multiple layers or colours are combined. It excludes startup loss, ink left in equipment and substrate-specific behavior beyond the measured yield.
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?
Equivalent full-coverage area (m²); Estimated ink (litres); Whole containers; Purchased ink (litres). 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: Uses a measured full-coverage ink yield and scales linearly by your equivalent coverage. Coverage may exceed 100% when multiple layers or colours are combined. It excludes startup loss, ink left in equipment and substrate-specific behavior beyond the measured yield.
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: percentages 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 →