THE NUMBERS, EXPLAINED
How to use this calculator.
Hangers run along a straight rail at fixed center spacing, with entered end clearance. Shoulder width is checked against closet depth; this geometric check does not assess rail strength.
Start with your inputs
Enter rail length (cm), hanger center spacing (cm), end clearance at each end (cm), garments to hang, garment shoulder width (cm), closet internal depth (cm). Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Rail length (cm) | 120 |
| Hanger center spacing (cm) | 5 |
| End clearance at each end (cm) | 10 |
| Garments to hang | 25 |
| Garment shoulder width (cm) | 45 |
| Closet internal depth (cm) | 60 |
A worked example
With the example inputs above, rail garment capacity is 20. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Rail garment capacity | 20 |
| Garment overflow | 5 |
| Remaining usable rail (cm) | 0 |
How this is calculated
Rail garment capacity
Subtract end clearances, divide by hanger spacing and round down; zero capacity if shoulders exceed depth.
Garment overflow
Subtract usable garment capacity from requested garments.
Remaining usable rail (cm)
Subtract occupied hanger intervals from usable rail.
Symbols and units
- a
- Rail length (cm)
- b
- Hanger center spacing (cm)
- c
- End clearance at each end (cm)
- d
- Garments to hang
- e
- Garment shoulder width (cm)
- g
- Closet internal depth (cm)
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
Hangers run along a straight rail at fixed center spacing, with entered end clearance. Shoulder width is checked against closet depth; this geometric check does not assess rail strength.
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?
Rail garment capacity; Garment overflow; Remaining usable rail (cm). 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: Hangers run along a straight rail at fixed center spacing, with entered end clearance. Shoulder width is checked against closet depth; this geometric check does not assess rail strength.
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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