distance from lands end to john o groats
Land's End to John o' Groats Land's End to John o' Groats is the traversal of the whole length of the island of Great Britain between two extremities; in the southwest and northeast. The traditional distance by road is 874 miles (1,407 km) and takes most cyclists ten to fourteen days; the record for running the route is nine days. Off-road walkers typically walk about 1,200 miles (1,900 km) and take two or three months for the expedition. Two much-photographed signposts indicate the traditional distance at each end.
Great-circle distance The Earth is nearly spherical (see Earth radius), so great-circle distance formulas give the distance between points on the surface of the Earth correct to within about 0.5%.[1] (See Arc length § Arcs of great circles on the Earth.)