Ride calculator computes speed, equivalent flat distance, and riding time. Enter course properties: climbing elevation and distance, rider properties: weight, aerodynamic properties, and power, and environmental properties: air density, wind speed and direction. It should appear below in a Java enabled browser (requires Java 1.5 or above)...\
If the applet doesn't load and the plugin doesn't install, you can install Java by downloading and executing Java 1.5.0-06 (16 MB). Then restart Firefox, or reboot for IExplorer.
Once the applet runs, you can run the "Speed Calculator" as a Java Web start application on your desktop.