Usage:
Find the proper unit your amount is(are) in and unit your would like to
convert to. Input the number of amount in the blank field according to its
unit. Then click '<-Convert->' button and see your converted amount. You can
input in the left blank field or right blank field according to your amount
unit. Click 'Reset' button and insert anothor amount.
Caution: This
service can be used only on JavaScript supported browser.