THE NUMBERS, EXPLAINED
How to use this calculator.
Supervision is additional paid time and the same loaded rate is used throughout; task times exclude paid breaks.
Start with your inputs
Enter task counts per shift, minutes per task, paid breaks per worker (minutes), workers assigned, supervision hours per shift, loaded hourly labour cost (currency). Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Task counts per shift | 20,10 |
| Minutes per task | 3,6 |
| Paid breaks per worker (minutes) | 15 |
| Workers assigned | 2 |
| Supervision hours per shift | 0.5 |
| Loaded hourly labour cost (currency) | 20 |
A worked example
With the example inputs above, productive cleaning hours is 2. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Productive cleaning hours | 2 |
| Total paid hours | 3 |
| Shift labour cost (currency) | 60 |
How this is calculated
Productive cleaning hours
Multiply task quantities by measured task times.
Total paid hours
Add paid breaks for all assigned workers and supervision.
Shift labour cost (currency)
Price all paid hours at the supplied loaded rate.
Symbols and units
- a
- Task counts per shift
- b
- Minutes per task
- c
- Paid breaks per worker (minutes)
- d
- Workers assigned
- e
- Supervision hours per shift
- f
- Loaded hourly labour cost (currency)
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
Supervision is additional paid time and the same loaded rate is used throughout; task times exclude paid breaks.
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?
Productive cleaning hours; Total paid hours; Shift labour cost (currency). 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: Supervision is additional paid time and the same loaded rate is used throughout; task times exclude paid breaks.
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 →