Track length in feet:          Feet Track length in miles*  (.14962 for Wonderland): Miles Lap time in seconds: Seconds Average speed: MPH

Instuctions

This application will calculate a lap speed in MPH. Enter the appropriate information then click on 'Feet' or 'Miles'. If you make a mistake, click on the appropriate box and reenter the figure. To reset the entire form, click on 'Reset'. To close the application, click on 'Close'.