I burn 910 calories in 1 hour of hard cycling according to my Garmin.
depends what your doing
You can do 1000 jumping jacks or run 3 hours
How long it takes to burn off 3000 calories depends on the activity you choose and your size. If you select a moderate activity that burns off 200 calories an hour, it will take you 15 hours to burn off that many calories.
I5 hundred seconds in a round 300 by 400 pool!
it wouldn't cos u would be dead
A gram of any kind of fat is about 8 calories. The time to burn it depends on your activity. You burn calories even at rest (1.6 calories/hour) so at rest it would take you about 5 hours to burn 1 gram of fat. If instead of sitting alone in a chair you were kissing someone you would burn 8 calories in about 5 minutes. If you were walking you would burn 8 calories in 2 or 3 minutes.
It depends on your weight and the intensity of exercise. For me, it would take over four hours.
Depends on what you are doing and how hard you are exercising. I have a running watch that estimates calorie burn and it typically tells me about 100 calories per mile. So a 15 mile run would do it for you.
That would be impossible. 3500 calories in a pound of fat means you need to burn 35,000 calories in a week. An average person (150lbs, maybe) would burn off 10,500 calories if they ate nothing at all for a week.
30 or 40 minutes.
3 hours
burn 7700 calories on it