SDT Calculator for Android makes it extremely easy to calculate Speed, Distance, Time or Pace using this app even across different units, right on your phone.

Want to know your speed in Miles/Hour, but you only know how far you walked in Kilometers?
This app can help you to easily calculate across different units. If you know the distance in kilometers, you can input the values in Km and ask the app to give you the result in Miles per hour. Similarly you can select from a whole range of other units to convert to and from.


  • Calculate your Speed, Pace, Distance or Time, if you know any of the two of the three values
  • Convert between different units, e.g. Between metric and imperial units
  • Precision up to 10 decimal places (select precision from Menu > Settings)
  • Automatically remembers last values

Supported Units:

  • Inches
  • Feet
  • Yards
  • Miles
  • Leagues
  • Millimeters
  • Centimeters
  • Decimeters
  • Kilometers
  • Nautical Miles
  • Hours, Minutes, Seconds, Milliseconds


Calculate Speed Calculate Pace Calculate Time Calculate Distance


Get it on Google Play