An Alfred 2 workflow help you to convert units and currencies.
convert 10 ft cm
convert 10 ft in cm
convert 10 ft to cm
convert 20 tempC tempF
convert 20 usd vnd- Ruby 2.0
The workflow use a free API for currency exchanges rate http://rate-exchange.appspot.com/.
If you like the workflow and its currency converter, please consider to make a small donation to the API http://ko-fi.com/?i=8d071856392d304 to keep its live.