When it comes to distance and speed, you have the option of changing the units of measure used by your tracker.
Website:
Step 1: Log in to the app from a web browser: app.spytec.com.
Step 2: Click on the menu in the top left-hand corner and select "Preferences."
Step 3. Navigate to the Settings tab and click on the "Distance" and "Speed" drop-down menus. 
Step 4: Select your preferred units of distance (feet, kilometers, meters, miles, or yards).
Step 5: Choose your preferred units of speed (kilometers per hour or miles per hour). 
Step 6: Click "Save" at the bottom to save your changes. 
Mobile App:
Step 1: Log in to your account from the mobile app.
Step 2: Tap the menu icon on the bottom right-hand corner.
Step 3: Scroll down to the 'Preferences' section and select 'Settings.'
Step 4: Scroll down to the bottom of the screen choose the desired units of distance and speed you would like your tracker to report. 
Step 5: Choose "Save Changes" at the bottom when finished.