How much is a dollar in English money today?
I think you mean British pounds! The current exchange save for pounds to dollars is 1 pound to 1.53 dollars :)
Today there is no such thing anymore as "German money". Before 2002 Germany used to have the Deutsche Mark as a currency but since 2002 Germany is a (prominent) member of the group of European countries that all have the Euro as a common currency. The value of 1 dollar today (July,2014) is 73 eurocents.