How long would i have to bike to burn 1000 calories?
Lots of variables determine the answer. Your weight, the speed of the bike, the terrain, the bicycle gear you're using ....
Depends how fast your going in average 2-3 weeks
It depends on how far, how fast, how long up hill or downhill. Everything depends like heat or the cold.
From what I know it's really hard to burn 1000 calories. Unless you are severally obese and bike ride for at least a couple hours I don't think it will burn more then 50-200 calories
On average, 13mph 2 hours will burn around 1000 kcals