Time Travel Calculator
Travel Time Calculator works out Travel time and Total time including stops from Distance, Distance unit and Average speed. The default figures on this page give travel time of 2 h; change any entry and the result, the working and the sources update together.
Your figures
Updates as you typeHow this is worked out
2 steps
- Travel time = distance / speed = 100 / 50 = 2 hours.
- In minutes: 60 x 2 = 120 minutes (2 h).
Its 5 worked examples are re-run on every release, last on 15 September 2026. What changed
Sources and references
3 sources
What the Travel Time Calculator calculates
Computes how long a journey takes from its distance and a constant average speed, adds any planned stops, and reports the arrival time and date when a departure time is given.
How to use this Travel Time Calculator
Enter Distance, Distance unit, Average speed and Speed unit. Travel time updates as you type, and “Use a worked example” loads checked figures you can adjust. Change one figure at a time to see what drives the result.
How the result is worked out
Open “How this is worked out” beside the result for the step-by-step calculation behind Travel time, Total time including stops and Minutes per unit of distance.
The method follows OpenStax, Elementary Algebra 2e - distance, rate and time relationships, NIST Guide to the SI, Appendix B.9 conversion factors and Google Maps Routes API documentation.
100 miles at 50 mph takes two hours example
With Distance: 100, Average speed: 50, the calculator returns Travel time: 2, Travel time: 120. This example is checked against an independent source in the test suite.
What you can compare
Change one input at a time to see how it affects Travel time, Total time including stops and Minutes per unit of distance. The inputs you can vary are Distance, Distance unit, Average speed, Speed unit, Planned stops and Departure time.
Results are general information, not financial, tax, legal, medical or engineering advice. Check any decision that matters with a qualified professional.
See something wrong? Report a problem with this calculator
Frequently asked questions
How do I calculate travel time?
Computes how long a journey takes from its distance and a constant average speed, adds any planned stops, and reports the arrival time and date when a departure time is given. Open “How this is worked out” beside the result to see each step for your own figures.
How to calculate the length of travel time?
It needs Distance, Distance unit, Average speed, Speed unit, Planned stops and Departure time. Nothing else is required, and the figures stay in your browser.
How do I calculate travel time on Google Maps?
The result gives Travel time, Total time including stops, Minutes per unit of distance, Average speed, Distance and Arrival time, each labelled with its unit so the figure can be read on its own.
What information do I need for the Travel Time Calculator?
You need Distance, Distance unit, Average speed, Speed unit, Planned stops, Departure time and Departure date. The page opens with default figures that give travel time of 2 h, so you can see the scale before entering your own.
What does this Travel Time Calculator show?
It shows Travel time, Total time including stops, Minutes per unit of distance, Average speed, Distance, Arrival time, Arrival date and Arrival weekday, with the working and any warnings for your entries.
Can I check how the Travel Time Calculator result was calculated?
Yes. The “How this is worked out” section shows the calculation steps, and the sources section identifies the references used for the method.