If you go to England how much is your 100 worth?

Answer 1

It depends what you 100 is, and where its from. If you mean 100 US Dollars it is equivalent to about 50 british pounds sterling. You can look on this site for fats currency conversion anytime, with any currency http://currencyconverter.uk.com/jump/ggo.html

Answer 2

Usually not. The currency of the UK, of which England is part, is the British pound, symbol '£'.

Some larger shops in tourist parts of London accept US dollars, but you get an inferior exchange rate. Or you can change your dollars to pounds in a bank or Bureau de change.