1,000 calories on the eliptical[8 miles].

"Using an elliptical machine gives you an effective cardio workout and is much less stressful on your muscles and joints than running or jogging on a hard surface. However, working out on an elliptical machine requires a certain amount of stamina and endurance just like any other cardio exercise. Some fatigue is normal, but if you are not in shape or not getting enough nourishment, leg fatigue occurs more quickly and is more pronounced."