THE NUMBERS, EXPLAINED
How to use this calculator.
Cleaning is charged after each complete wear interval, including a final complete interval; no resale value or time value of money.
Start with your inputs
Enter garment purchase price (currency), expected lifetime wears, dry-cleaning charge (currency), wears between cleanings. Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Garment purchase price (currency) | 120 |
| Expected lifetime wears | 40 |
| Dry-cleaning charge (currency) | 12 |
| Wears between cleanings | 4 |
A worked example
With the example inputs above, lifetime cleanings is 10. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Lifetime cleanings | 10 |
| Lifetime ownership and care cost | 240 |
| Cost per wear | 6 |
How this is calculated
Lifetime cleanings
Count completed wear intervals.
Lifetime ownership and care cost
Add purchase price and cleaning charges.
Cost per wear
Divide total lifetime cost by wears.
Symbols and units
- a
- Garment purchase price (currency)
- b
- Expected lifetime wears
- c
- Dry-cleaning charge (currency)
- d
- Wears between cleanings
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
Cleaning is charged after each complete wear interval, including a final complete interval; no resale value or time value of money.
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?
Lifetime cleanings; Lifetime ownership and care cost; Cost per wear. 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: Cleaning is charged after each complete wear interval, including a final complete interval; no resale value or time value of money.
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.
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