If you know the gradient on a hill and its length, is it theoretically\npossible to be able to calculate a flat cycling equivalent i.e. how far\nwould you have to cycle on the level to equal the energy expenditure of\nthe hill climb?\n\nThe motivation for this is that when cycling from Guildford to work, I\nhave a choice of two routes. Route 1 is 10.6 miles with 1175 ft of\nascent. Route 2 is 13.1 miles with 870 ft of ascent. Which route is\nlikely to be easier?