Travel Time Comparison

Compare time for the same distance at two average driving speeds, including a shared stop allowance. Shows minutes and the signed time difference.

Time & capacityCalvanceUpdated 5 formulas
Worked exampleExported from Calvance
Travel Time Comparison · A − B: 36 min
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Exported by the iOS App After importing, edit the numbers in Calvance.

When to use it

Compare two planning assumptions for the same route length. Use average speed while moving, not a speedometer reading or a target driving speed. The metric example uses kilometres, km/h and minutes. Download the canvas to adjust distance, averages and stop time.

Inputs

Inputs Default
Distance (km) 180
A speed (km/h) 60
B speed (km/h) 75
Stops (min) 20

Calculation method

Divide distance by each average speed and convert the result to minutes. Add the same stop allowance to both. Subtract B’s total from A’s: a positive difference means B takes less time. At 180 km, 60 and 75 km/h with 20 minutes stopped, totals are 200 and 164 minutes.

Each input has its actual unit. Calvance converts compatible units during calculation; changing a label alone does not convert a value. Results use the displayed target units.

180 [Distance km]/60 [A speed km/h] → A moving min

Distance km/75 [B speed km/h] → B moving min

A moving min + 20 [Stops min] → A total min

B moving min + Stops min → B total min

A total min - B total min → A − B min

Change one input

Change distance from 180 to 240 km. Moving time increases, but the 20-minute stop allowance stays fixed. The comparison table shows how this affects both totals and their difference.

Result Default Changed
A moving (min) 180 240
B moving (min) 144 192
A total (min) 200 260
B total (min) 164 212
A − B (min) 36 48

Results are displayed to at most two decimal places; later formulas use unrounded values.

Scope and limits

  • Distance and stop minutes must be nonnegative; both average speeds must exceed 0.
  • Stops are excluded from average moving speed and added once, equally to A and B.
  • Positive A − B means B takes less time; negative means A takes less time.

This is arithmetic, not live route guidance, an arrival-time forecast or advice to drive faster. Traffic, route changes and conditions are not predicted. Always obey speed limits. A decimal number of hours is not an hours-and-minutes clock value; this canvas outputs minutes.

Download and import into Calvance to edit the numbers. The canvas does not reject every invalid input; check the stated ranges.

Common questions

Should stops be included in the average speed?

Not in this model. If your average already includes stops, enter zero extra stop minutes to avoid counting them twice.

Why do equal stop times not change the difference?

Adding the same number to both totals cancels when subtracting. Different stop allowances require separate inputs or a modified canvas.

References

OpenStax · Speed and Velocity

Trip Fuel Cost

How to import your template

We recommend using the latest version of Calvance.

  1. Save the file. Choose Download template and save the .calvx file to Files on your iPhone or iPad. From a computer, you can send it to your device with AirDrop.
  2. Open Import. In All Canvases in Calvance, tap the add button to open the template screen, then choose Import.
  3. Choose the file. Select the saved .calvx file to create your own canvas. Importing uses one canvas from your allowance.
  4. Edit and check. Check the results against the worked example, then add your numbers. Duplicate the canvas to keep different versions.
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