The currency in Denmark is the Danish Krone (DKK). The following foreign curencies can be used in Denmark : Euro, US Dollar, British pound, Norweigan Krone, Swedish krona.
Sweden
The currency in Sweden is the Swedish Krona (SEK). While some businesses in major tourist areas accept Euro and US Dollars; it is advisable to carry local currency for easier purchasing.
Netherlands
The currency in the Netherlands is the Euro (EUR). Other currencies that are commonly accepted include US Dollars, British Pound and Swiss franc.