For this post all values are rounded.
As of today bitcoin has created
12,922,000 coins in circulation
At time of writing 1 bitcoin was $594 USD
This puts the total value of the coins at $7.7 billion USD and is roughly equivalent to what the federal reserve calls M0. For USD M0 is $3.9 trillion at present.
If Bitcoin were an economy, it would be the 149th largest in the world slightly larger than Montenegro and slightly smaller than Mauritania.