About the Drive Time Calculator
This drive time calculator estimates how long a road trip will take from door to door. Enter the distance and your expected average speed to get the time behind the wheel, then add fuel or meal stops, regular rest breaks and — for long journeys — a daily driving limit with overnight stops. Give it a departure date and time and it tells you when you should arrive.
Use it to plan a road trip, decide whether a drive is doable in one day, pick a departure time that avoids arriving late at night, or give someone a realistic ETA. The comparison table shows how the trip changes at different average speeds, which is a quick way to see how much time a faster pace really saves.
Average speed is not the speed limit: traffic, towns, road works and slowing for junctions usually make it 10–20% lower than the posted highway limit. Arrival time is shown in the same clock as departure, so if the drive crosses a time zone, add or subtract the difference.
How to use the drive time calculator
- 1Enter the distance and choose miles or kilometres.
- 2Enter a realistic average speed for the route.
- 3Add the number of fuel or meal stops and how long each lasts.
- 4Set how often you take a rest break, or 0 for none.
- 5For multi-day trips, set a daily driving limit and overnight stop length.
- 6Enter your departure date and time to see the arrival time.
Formula and method
Driving time is distance divided by your average moving speed. Rest breaks are taken every chosen number of driving hours, so a 5-hour drive with a break every 2 hours has two breaks (at 2 and 4 hours) and none on arrival. On multi-day trips breaks are counted separately for each day’s driving, since the overnight stop replaces the last break of the day. Fuel and meal stops are added separately.
If you set a maximum number of driving hours per day, the trip is split into driving days and an overnight stop is added between each pair. The arrival time is the departure time plus the total, shown in the same clock as departure, so adjust for any time-zone change along the route.
- Breaks
- ceil(Hours driven that day ÷ Break interval) − 1, summed over driving days
- Days
- ceil(Driving hours ÷ Max hours per day)
Worked examples
300 miles at 60 mph with one stop
300 miles at 60 mph is 5 hours of driving. Two 15-minute rest breaks (after 2 and 4 hours) and one 30-minute meal stop add an hour, so leaving at 8:00 AM gets you there at 2:00 PM.
1,100 km at 95 km/h with three stops, no breaks
1,100 ÷ 95 = 11.58 hours (11 h 35 min) of driving. Three 40-minute stops add 2 hours, for about 13 h 35 min in total, so a 6:30 AM start arrives around 8:05 PM.
2,400-mile cross-country drive over several days
2,400 miles at 65 mph is 36.9 hours of driving — four 9-hour days plus a short fifth day, with four 14-hour overnight stops. Each full day has four 15-minute rest breaks (16 in all) and there are five 45-minute stops, so a 7:00 AM Thursday start arrives at about 11:40 AM the following Monday.
Frequently asked questions
How do I calculate driving time?+
Divide the distance by your average speed. 240 miles at 60 mph is 4 hours. Then add time for fuel, food and rest stops — on long trips these often add 10–20% to the total.
What average speed should I use for a road trip?+
Use a figure below the speed limit to allow for traffic, towns, junctions and road works. On mostly interstate or motorway routes, many drivers average 55–65 mph (90–105 km/h); on rural or urban roads it can be much lower.
How often should I take a break when driving?+
Road safety organisations commonly advise a break of at least 15 minutes every two hours of driving, and stopping sooner if you feel drowsy. Fatigue is a significant factor in crashes on long journeys.
How many hours can you safely drive in a day?+
There is no single rule for private drivers, but US commercial truck drivers are limited to 11 hours of driving after 10 consecutive hours off duty, and many road-trippers plan 8–10 hours a day to stay alert.
Does the arrival time account for time zones?+
No — arrival is shown on the same clock as your departure time. If your route crosses a time zone, add an hour when driving east or subtract one when driving west for each zone you cross.