Work out road trip time instantly with clear inputs, formula shown and shareable results.
Journey time is distance divided by average speed plus break time. Average speed is always well below the speed limit once junctions, towns and traffic are included — planning on 90-95 km/h for motorway routes and 65-75 for mixed roads is realistic.
Journey time
total = distance / average speed + breaks x break length
About 90-100 km/h on motorways, 65-75 on mixed A roads and 45-55 on rural or urban routes. Satnav estimates are usually optimistic in traffic.
Every two hours or 200 km is the standard advice. Fatigue builds faster than most drivers notice, particularly after a large meal or on a monotonous route.