THE NUMBERS, EXPLAINED
How to use this calculator.
Assumes additive volumes, like-for-like strength measurements and zero-strength diluent. Excludes ice and shelf-life decisions.
Start with your inputs
Enter concentrate strength (%), target beverage strength (%), serving liquid volume (ml), number of servings. Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Concentrate strength (%) | 8 |
| Target beverage strength (%) | 2 |
| Serving liquid volume (mL) | 300 |
| Number of servings | 10 |
A worked example
With the example inputs above, concentrate per serving (ml) is 75. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Concentrate per serving (mL) | 75 |
| Diluent per serving (mL) | 225 |
| Batch concentrate (L) | 0.75 |
| Batch diluent (L) | 2.25 |
How this is calculated
Concentrate per serving (mL)
Preserve dissolved-solids mass in additive liquid volumes.
Diluent per serving (mL)
Subtract concentrate from serving volume.
Batch concentrate (L)
Scale concentrate by servings and convert to litres.
Batch diluent (L)
Scale diluent by servings and convert to litres.
Symbols and units
- a
- Concentrate strength (%)
- b
- Target beverage strength (%)
- c
- Serving liquid volume (mL)
- d
- Number of servings
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
Assumes additive volumes, like-for-like strength measurements and zero-strength diluent. Excludes ice and shelf-life decisions.
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?
Concentrate per serving (mL); Diluent per serving (mL); Batch concentrate (L); Batch diluent (L). 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: Assumes additive volumes, like-for-like strength measurements and zero-strength diluent. Excludes ice and shelf-life decisions.
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: Describe and Identify Cost Drivers ↗
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 →