Is there a command I can type into Bitcoin-Qt to see the total number of bitcoins that have been created? I know how to obtain this information from other means, I specifically want to know if it's possible for me to obtain this information using the Bitcoin-Qt client alone.

I am running it on Windows Vista and I don't have a miner set up.

Thanks.
You can calculate the total amount of when you know the last block in the block chain. You can check the number of block by holding your mouse on the icon in the lower right corner of the Bitcoin-Qt client.

Then you will need to use this table to calculate the total amount of bitcoins there exist. This table just lists up the block rewards, which halves every 210,000 blocks and starts at 50 BTC.

Currently you can easily add the 10,500,000 BTC from the first 210,000 blocks with 25 times the current block count minus 210,000.

If you want to have an implementation that you can use forever, it would look like this (I used Python):

def total_bitcoins(current_block_count):
    count = current_block_count
    reward = 5000000000 # satoshi
    total = 0 
    while count &gt; 0:
        total += min(count, 210000) * reward
        count -= 210000
        reward /= 2
    return total / 100000000.0


Note that this process limits the total amount of bitcoins that will ever be created to 20,999,999.9769.