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I've found topic about burned calories formula which is available here. But as a I am looking at it, some lines are not as clear understandable for me as I expected.

As you can see, there are some conversation factor that I truly don't know what is for.

Why does he use calculation for burned calories per kilometer and then count steps per mile? Thanks.

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It is probably a typo. If you look at what they're trying to achieve, it becomes quite obvious.

conversationFactor = CaloriesPerKilometer / stepCountMile;

This is clearly trying to get a factor (As per the name, good job captain obvious!)

The next step is to figure out how many calories are burned.

CaloriesBurned = numSteps * conversationFactor;

This is Converting, not Conversing, the number of steps into Calories. Which means it is either a typo, or someone who's not well versed in English that wrong the code.

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  • But how is it possible to divide caloriesPerKilometer and number of steps? Is there any calculation hidden behind that? – Pedro Ewors Jun 20 '16 at 14:05
  • Or is it better to ask, why is it needed to divide by miles? Can I use stepCountKilometer instead? – Pedro Ewors Jun 20 '16 at 14:10
  • It seems to be converting every metric measurements into imperial to deal with in Miles. (userWeight * 2.2, converts kg to lbs, userHeight * 0.415 I assume converts cm to inches, but this one is off by quite a lot) – Yousend Jun 20 '16 at 15:08
  • 0.415 is average size of adult mans foot. but 160934.4 is convertion for cm in one mile. Does that change anything? – Pedro Ewors Jun 20 '16 at 17:05
  • I have no idea how this formula works or the science behind it. I was merely reverse engineering the values. – Yousend Jun 20 '16 at 17:11

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