This is pretty far away. Making some quick and dirty calculations: The lowest bitcoin denomination is one Satoshi, which is 0.00000001 BTC. If one Satoshi woul

This is pretty far away. Making some quick and dirty calculations: The lowest bitcoin denomination is one Satoshi, which is 0.00000001 BTC. If one Satoshi would equal one cent, this means that one US dollar would equal 0.000001 BTC. Given that the maximum number of Bitcoins is ~21 million, this amounts to a max capitalization of ~21 trillion USD.