According to the latest exchange rates, 1000 US dollars is equal to approximately:
900 euros
800 British pounds
1100 Canadian dollars
1050 Australian dollars
7500 Chinese yuan
1300 Singapore dollars
1250 Japanese yen
But remember, these rates can fluctuate a bit depending on the day and the place you're exchanging your money. So it's always a good idea to check the latest rates before you make a transaction.