Cycling is classified as an aerobic exercise. Performing aerobic exercise can support cardiovascular health and improve the circulation of oxygen in the body. Cycling is a calorie-burning exercise that can simultaneously be used as a form of transport.
You can burn calories cycling in several different ways -- stationary biking, road biking or mountain biking. The exact amount of calories you burn will depend on your starting weight and the intensity level of the exercise.
If the weather is bad or you live in a hilly area, you may prefer to use an indoor stationary bike. A person weighing 125 pounds would burn 420 calories during 60 minutes of moderate cycling on a stationary bike. A 185-pound person would burn around 620 calories per hour.
When cycling outside at a speed of around 14 to 16 mph, a 125-pound person would burn around 600 calories during 60 minutes. A 185-pound person would expend around 885 calories.