How to calcuate burned calories and distance after getting step counts in Android step count sensor

What you’re looking for is called a Pedometer, I believe and, an app similar to it is available Pedometer - Apps on Google Play.

Fortunately, the source code is public as well bagilevi/android-pedometer

Burned Calories:

The function in CaloriesNotifier.java [1] that calculates the burned calories is as follows:

1. public void onStep() { 
2. if (mIsMetric) { 
3. mCalories +=  
4. (mBodyWeight * (mIsRunning ? METRIC_RUNNING_FACTOR : METRIC_WALKING_FACTOR)) 
5. // Distance: 
6. * mStepLength // centimeters 
7. / 100000.0; // centimeters/kilometer 
8. } 
9. else { 
10. mCalories +=  
11. (mBodyWeight * (mIsRunning ? IMPERIAL_RUNNING_FACTOR : IMPERIAL_WALKING_FACTOR)) 
12. // Distance: 
13. * mStepLength // inches 
14. / 63360.0; // inches/mile  
15. } 
16. notifyListener(); 
17. } 

Distance Walked:

Similarly, DistanceNotifier.java [2] gives the distance with the following method:

1. public void onStep() { 
2. if (mIsMetric) { 
3. mDistance += (float)(// kilometers 
4. mStepLength // centimeters 
5. / 100000.0); // centimeters/kilometer 
6. } 
7. else { 
8. mDistance += (float)(// miles 
9. mStepLength // inches 
10. / 63360.0); // inches/mile 
11. } 
12. notifyListener(); 
13. } 

Simply give it a run in your own IDE, it works fine.

Footnotes