THE NUMBERS, EXPLAINED
How to use this calculator.
Uses completed loaded and empty legs; empty travel is classified by the operator. No rerouting or fuel model is assumed.
Start with your inputs
Enter loaded route-leg distances (km), empty route-leg distances (km). Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Loaded route-leg distances (km) | 100,150 |
| Empty route-leg distances (km) | 20,30 |
A worked example
With the example inputs above, empty-running distance (km) is 50. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Empty-running distance (km) | 50 |
| Total traveled distance (km) | 300 |
| Empty-running share (%) | 16.666667 |
How this is calculated
Empty-running distance (km)
Add all empty route legs.
Total traveled distance (km)
Add loaded and empty distances.
Empty-running share (%)
Divide empty distance by total traveled distance.
Symbols and units
- a
- Loaded route-leg distances (km)
- b
- Empty route-leg distances (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
Uses completed loaded and empty legs; empty travel is classified by the operator. No rerouting or fuel model is assumed.
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?
Empty-running distance (km); Total traveled distance (km); Empty-running share (%). 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: Uses completed loaded and empty legs; empty travel is classified by the operator. No rerouting or fuel model is assumed.
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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