Convert Roman numerals

You no longer have to be perplexed by the Roman numerals you see all around you on copyright dates, statues, people who are trying to trick you. All you do is type in a number or Roman number then click the "Convert" button, and the Handy Roman numeral converter will take care of the rest. Almost instantly, the Roman secrets of the universe will be revealed.

Sounds almost too easy to be true. Too bad other things, like all the languages on the planet, aren't that easy.