THE NUMBERS, EXPLAINED
How to use this calculator.
All participants make all planned visits. Payment and travel rates are supplied approvals; the worksheet sets no eligibility or compensation policy.
Start with your inputs
Enter participants (count), visits per participant (count), approved payment per visit (currency), return travel distance per visit (km), approved reimbursement per km (currency/km). Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Participants (count) | 20 |
| Visits per participant (count) | 3 |
| Approved payment per visit (currency) | 25 |
| Return travel distance per visit (km) | 10 |
| Approved reimbursement per km (currency/km) | 0.5 |
A worked example
With the example inputs above, per-participant reimbursement (currency) is 90. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Per-participant reimbursement (currency) | 90 |
| Study reimbursement budget (currency) | 1,800 |
| Travel share of budget (currency) | 300 |
How this is calculated
Per-participant reimbursement (currency)
Add visit payment and travel reimbursement, then multiply visits.
Study reimbursement budget (currency)
Multiply per-participant reimbursement by participants.
Travel share of budget (currency)
Multiply total visits by return distance and distance rate.
Symbols and units
- a
- Participants (count)
- b
- Visits per participant (count)
- c
- Approved payment per visit (currency)
- d
- Return travel distance per visit (km)
- e
- Approved reimbursement per km (currency/km)
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
All participants make all planned visits. Payment and travel rates are supplied approvals; the worksheet sets no eligibility or compensation policy.
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?
Per-participant reimbursement (currency); Study reimbursement budget (currency); Travel share of budget (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: All participants make all planned visits. Payment and travel rates are supplied approvals; the worksheet sets no eligibility or compensation policy.
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 Prealgebra 2e — arithmetic and proportions ↗
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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