title: How to calculate speed of car using Acceleration in android?
body: <p>I am working on an android project where I need to calculate speed of car from android device.
  For that I try to use GPS, but GPS is able to disabled by user and also the battery consumption by GPS is too high, so that I need to calculate speed using acceleration sensor.</p>
  
  <p>If any one know any API or way to calculate speed then please help me for this.</p>
  
  <p>Thanks in advanced.</p>