I have an el-cheapo Cat Eye cyclo-compter which has a calories burned calculator. I am super happy with, considering the price, but it seems that the calorie counter gets the time and distance, but the weight part must be some non-adjustable pre-determined figure that is likely less than my actual weight. Does anyone know a multiplier/formula or way I could (not accounting for wind) get closer to the actual number of calories burned? If not, is there a calorie burner calculator available on-line that incorporates speed, time, and weight? Any info would be much appreciated.