Naturally your expenses while in Copenhagen will depend on your living situation and your own spending habits. Since it is difficult to know what those are, we can only give you a general idea of some of the costs you will encounter in Denmark.

Expenditures per month DKK:

Food 2000
Books & supplies (total for a semester) 3000
Transport 300-600
Other personal expenses 2000

Other miscellaneous costs in Denmark that may be of interest:

Other expenditures in DKK as of February 2011
Used bike 500-1000
Cinema ticket 80
Dining out (not extravagantly) 150-200
Entrance to Disco 0-100
Soda or beer in a pub 30-50
Soda or beer at the supermarket 5-10
Cappuccino or Latté 30-40

Food: A hot meal in the RUC cafeteria costs approx. DKK 30-40. If you plan to eat out in restaurants, you should plan on spending much more on food than DKK 2000 a month.

Tipping is only customary in Denmark when service has been particularly good. Taxi fares and restaurant bills include service charges and therefore you are usually not expected to add extra to that.

Books/supplies:

The cost depends of course on the subject but most foreign students are shocked at the price of books in Denmark. A book can cost anywhere between DKK 100 and 2000. Check www.slbooks.dk for more information.

However, you should always check to see whether the book is available in the Roskilde University Library.

Also, you can save a great deal of money by buying second hand books from other students. Register for the mailinglist markedsplads(at)ruc.dk to get notifications on books, bikes etc. for sale from students and staff at RUC.