Helpful websites for calories burned

There's lots if discrepancies on how many calories are burned during running. Although I use a Nike Sportsband, which I find pretty accurate next to my Suunto HRM. Here is the website:

http://caloriesburnedrunning.org/

I will be starting up P90X next Monday after my half marathon on Sunday and found this website to calculate calories burned during that. Here it is:

http://p90xcalories.com/

Hope this is helpful to some. :drinker: