THE NUMBERS, EXPLAINED
How to use this calculator.
Identical load units must satisfy building weight and size rules supplied separately. Constant cycle includes loading, unloading and return.
Start with your inputs
Enter identical loads to move, loads per elevator cycle, full cycle including return (min), booked window (min). Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Identical loads to move | 20 |
| Loads per elevator cycle | 4 |
| Full cycle including return (min) | 8 |
| Booked window (min) | 45 |
A worked example
With the example inputs above, elevator cycles is 5. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Elevator cycles | 5 |
| Required time (min) | 40 |
| Booking slack (min) | 5 |
How this is calculated
Elevator cycles
Divide loads by cycle capacity and round up.
Required time (min)
Multiply cycles by measured full-cycle duration.
Booking slack (min)
Subtract required cycle time from booking window.
Symbols and units
- a
- Identical loads to move
- b
- Loads per elevator cycle
- c
- Full cycle including return (min)
- d
- Booked window (min)
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
Identical load units must satisfy building weight and size rules supplied separately. Constant cycle includes loading, unloading and return.
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?
Elevator cycles; Required time (min); Booking slack (min). 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: Identical load units must satisfy building weight and size rules supplied separately. Constant cycle includes loading, unloading and return.
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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