Distance (kilometres) x calories/km = total calories
Distance (kilometres) x 18 = total calories
Calories burned by a cyclist vary based on weight, age, body mass index, terrain, speed, wind etc. As there are too many variables to accurately calculate calorie usage, the statistic on this website is an approximation. A moderate cycling speed of 25 kilometres per hour has been assumed for the calculation of calorie expenditure with 18 calories burned per kilometre.