THE NUMBERS, EXPLAINED
How to use this calculator.
Servings and ice per serving are supplied by you. This arithmetic does not predict weather-related melting or recommend consumption. Chilling reserve is additional ice separate from the servings.
Start with your inputs
Enter guests, servings per guest, ice per serving (g), extra chilling reserve (kg), ice bag weight (kg). Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Guests | 100 |
| Servings per guest | 3 |
| Ice per serving (g) | 100 |
| Extra chilling reserve (kg) | 5 |
| Ice bag weight (kg) | 2 |
A worked example
With the example inputs above, serving ice (kg) is 30. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Serving ice (kg) | 30 |
| Total ice target (kg) | 35 |
| Whole bags | 18 |
| Purchased ice (kg) | 36 |
How this is calculated
Serving ice (kg)
Guests × servings per guest × grams per serving ÷ 1,000.
Total ice target (kg)
Add extra chilling reserve.
Whole bags
Round up total target ÷ bag weight.
Purchased ice (kg)
Whole bags × bag weight.
Symbols and units
- a
- Guests
- b
- Servings per guest
- c
- Ice per serving (g)
- d
- Extra chilling reserve (kg)
- e
- Ice bag weight (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
Servings and ice per serving are supplied by you. This arithmetic does not predict weather-related melting or recommend consumption. Chilling reserve is additional ice separate from the servings.
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?
Serving ice (kg); Total ice target (kg); Whole bags; Purchased ice (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: Servings and ice per serving are supplied by you. This arithmetic does not predict weather-related melting or recommend consumption. Chilling reserve is additional ice separate from the servings.
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: geometric formulas and arithmetic ↗
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 →