Travel Time Calculator
Estimate trip duration, arrival time, stops, and buffer time
One-way route distance.
Expected average while moving.
Planned stops during the trip.
Average time per stop.
Extra time for traffic or delays.
Local clock time you leave.
Calculation Steps
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How Travel Time Is Estimated
Distance and average speed set the moving time; stops and buffer make the plan more realistic.
Average speed
Use a realistic route average rather than the highest speed limit. City traffic and slower road segments reduce the average.
Stops and buffer
Add fuel, food, charging, rest, or pickup stops. Buffer time helps account for uncertainty before calculating arrival.
Arrival time
Departure time plus driving, stops, and buffer gives an estimated arrival clock time and next-day marker when needed.
Travel Time Examples
Quick estimates for road trips, commutes, and overnight drives.
300-mile road trip
300 miles at 60 mph with one 20-minute stop and 10% buffer takes about 5 hr 52 min.
Metric day trip
A 120 km round trip at 80 km/h takes about 3 hours before stops or buffer.
Late departure
Departure at 10:30 PM with a 3-hour trip arrives after midnight and shows a next-day marker.
Travel Time Calculator FAQ
Common questions about average speed, stops, buffers, and arrival times.
What average speed should I use?
Use an expected door-to-door average, not only the speed limit. City traffic, fuel stops, charging stops, and mountain roads can lower the average.
Does the calculator include traffic?
Traffic is not predicted automatically. Add a buffer percent or planned stop time when the route is uncertain.
Can I calculate a round trip?
Yes. Switch the trip type to round trip and enter the one-way distance. The calculator doubles the distance before estimating time.
How is arrival time calculated?
Arrival time is departure time plus driving time, planned stops, and buffer time. It uses your entered local clock time.
Why does this differ from a map app?
Map apps can use live traffic, route geometry, and speed data. This calculator is a planning estimate when you already know the distance and expected average speed.