To cover the 851 miles from London to Cannes will require at least 8 hours and 30 minutes of driving time at an average of 100 mph.
It is a 640 mile journey, including the distance over the chanel which you account for depending on the train (30 mins) or the ferry (2 hours) each of which also have loading time. This website can be useful http://www.distance-calculator.co.uk/distance-from-london-to-cannes.htm but i think it wuuld take at least 10 hours in total to get there door to door from any London address.
About 3 hours driving
About two hours but much depends on which part of London you are driving from.
It depends if you are driving from London, Arkansas, London, Ohio, London, Texas, or London, West Virginia! (the question does not specify it)!
About four hours.
191km, or 2hrs & 20min driving time
About 3 hours driving
Approximately twice as long as from London to England.
15 Minutes.
The driving distance is approximately 1,149 km using the A1. If you average 65 mph for the whole trip, the driving time will be about 11 hours. Add extra time to account for stops or delays.
The driving distance is approximately 239 road miles. If you average 65 mph for the whole trip, the driving time will be about 3 hours and 40 minutes. Add extra time to account for stops or delays.
Driving Time: London to Edinburgh The distance from London to Edinburgh is 650 kms (404 mi) - about 7 hours 15 mins. See the link below for a map with driving directions and distance from London to Edinburgh.