How many bitcoins? About 20% of bitcoins are gone. This chart shows the historical amount of bitcoin in circulation.
How many Bitcoins are missing? The mark is estimated at 21 million. Bitcoin Virtue has a limited supply of 21 million BTC in stocks.
Maximum amount of bitcoins possible is 21 million. The advantage of Bitcoin is that it has a limited supply of 21 million BTC.
Source: thefrisky.com This number changes every 10 minutes as new blocks are used. 18,880,000 / 7,753,000,000 = ~0.00244.