THE NUMBERS, EXPLAINED
How to use this calculator.
Billed hours are the larger of actual attendance and the provider’s minimum. No partial-hour rounding unless already reflected in actual billed hours.
Start with your inputs
Enter actual session hours, hourly rate, minimum billed hours, travel charge. Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Actual session hours | 2.5 |
| Hourly rate | 12 |
| Minimum billed hours | 3 |
| Travel charge | 5 |
A worked example
With the example inputs above, billed hours is 3. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Billed hours | 3 |
| Minimum-booking unused hours | 0.5 |
| Total session fee | 41 |
How this is calculated
Billed hours
Apply the minimum booking length.
Minimum-booking unused hours
Subtract actual session hours from the minimum.
Total session fee
Multiply billed hours by rate and add travel charge.
Symbols and units
- a
- Actual session hours
- b
- Hourly rate
- c
- Minimum billed hours
- d
- Travel charge
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
Billed hours are the larger of actual attendance and the provider’s minimum. No partial-hour rounding unless already reflected in actual billed hours.
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?
Billed hours; Minimum-booking unused hours; Total session fee. 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: Billed hours are the larger of actual attendance and the provider’s minimum. No partial-hour rounding unless already reflected in actual billed hours.
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.
Read the quality report →