The Economic Times of India reports that an average person burns more calories from riding a bike compared to walking, according to a study by The USDA Center for Nutrition Policy and Promotion. Casual cycling burns around 290 calories per hour compared to 280 calories per hour from walking.
The Harvard Medical School states that casual cycling burns between 210 and 311 calories per 30 minutes, while casual walking burns from 120 to 178 calories in the same amount of time, with the exact amount of calories burned varying depending on body weight. Vigorous bicycling burns even more calories. According to Harvard Medical School, a 185-pound adult burns approximately 733 calories cycling at a speed above 20 mph for 30 minutes.