Originally Posted by
krazygl00
If you did 12,000kJ in one week, google converts that to 2,868kcal (correct me if I'm wrong here). You can easily order one meal at Chilis or your local rib joint that will go over 3,000kcal.
Google may convert it like that, but your body doesn't. Because people are only about 20% efficient, its a pretty safe assumption to use 1KJ at the power meter = 1 dietary calorie.
Alan Lim had a calculation on Saris' website, taking the range of efficiency in athletes tested, which showed that 1 KJ = 1.1 dietary calories to an accuracy of +/- 5%, depending on the efficiency of the individual.
So for simplicity use a 1 to 1 ratio, or you can give yourself .1 extra credit based on Lim's data.