Cycling

A person that weights 75 lbs cycling at 14-16 mph for 30 minutes looses 180 calories.

A person that weights 175 lbs cycling at 14-16 mph for 30 minutes looses 336 calories.

For people that wants too loose more calories and weight, jogging it's a better option, but cycling it's better to increase and define your legs muscles because the fact that, when you're cycling, you don't get as tired as jogging happens thanks to the fact that your legs muscles makes a bigger effort than when your jogging.