How to Use the Travel Time Calculator
Enter the trip distance and an average speed (using a realistic figure rather than the posted speed limit, as covered in the average-speed guide) — the calculator shows the estimated travel time, and adding a manual buffer for stops and typical delays gives a more realistic expected total trip time.
The Travel Time Calculator applies the basic distance-and-speed calculation — here's how to use it for a more realistic result.
Entering distance and a realistic average speed
Enter the trip distance and a realistic average speed for the specific route type — as covered in the posted-limit guide, using an appropriately discounted average rather than the maximum posted limit gives a more accurate base estimate.
Adding a buffer for a realistic total
As covered in the optimistic-estimate guide, adding a reasonable buffer on top of the calculator's base result — for stops, typical traffic, or known unpredictable conditions — gives a more realistic total expected trip duration than the clean theoretical calculation alone.