 [ Symptoms ] how many calories do i burn when i bike [ Disease ] you can burn as many as 750 to 1 000 calories per hour if the biking is hard and continuous most people do not work that hard and so 500 600 calories is more likely but your calorie expenditure will vary greatly depending on whether you are on a stationary or outdoor bike how hard you work how efficient your bike is and other factors in comparison to running biking burns about 25 fewer calories if you equal out the workload however your calorie expenditure while biking is going to vary and it is entirely possible to burn more calories on a bike than running in the same period of time