by Andreas Ostheimer on WordPress.org
The Windspeed Converter gives you the possibility to insert a converter via widget or shortcode into your site.
The user has to write one of five values and the plugin calculates the others. Supported units: km/h, mph, Beaufort, m/s, and knots.
[windspeed_converter][windspeed_converter link="false"][windspeed_converter beaufort="false"]See the Windspeed Converter site for a test run!