Calculating calorie with the help of pedometer

[anoop4real]

Hi,
I feel I am posting in the right section, I was trying to calculate the calories burned with the help of number of steps walked, but not sure which formula I should use.
I have a predefined stride length
so distance traveled will be (no of steps x stride length) and I know my weight, with the help of these two whether I will be able to calculate calories burned??

I saw a different range of formulas

calorie=wt(lbs)xdistance(miles)

calorie=wt(lbs)xdistance(miles)x(.53)

calorie=wt(lbs)xdistance(miles)x(.029) etc

but which one is true, can anyone tell me the right formula to be used to calculate the calories burned.

thanks

 

[anoop4real]

bump!

any suggestions?