$500 Billion to go in order to break into the top 10. http://lopp.net/m1/rank.html pic.twitter.com/Ea7XUizZKc
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
It's probably calculated with the official exchange rate
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.