The Norwegian currency consists of "kroner" (NOK) and "øre". 100 øre make up 1 krone.

10 Euros equals about NOK 80
10 US Dollars equals about NOK 55. (Please check daily exchange currency rate.)

Eating out

Dinner for between 50 and 100 kroner is considered cheap. Expect to pay between 80 and 120 kroner at a café and from 150 at restaurants.

A glass of beer (varies between 0.4 and 0.5 litres) at a pub/bar:

A cheap beer costs between 30 and 40 kroner
Normally a beer costs between 45 and 60 kroner
  
Tap water in Norway is drinkable indeed. Buying bottled water is in most cases unnecessary. Getting a glass of water at cafes and restaurants is almost always free. Just remember to buy something in addition to getting water.

Budget travelling

Transportation passes, groceries, alternative accommodations, and admissions are affordable, at about the same prices you would pay in England or Italy.

Stay where the locals do, at youth hostels, rented cottages and apartments, and camp sites. Compare the best deals for train and car travel before you go. With a little bit of planning, your holiday will not be as expensive as you might think.

Many places offer youth, student, senior, and family discounts. If you are any of the above, always mention it. Students should travel with an International Student Identity Card (ISIC).

Credit cards

The use of credits cards is widespread in Norway, and they are accepted almost everywhere. Eurocard, MasterCard, VISA, American Express and Diners Club are the most common. It is a good idea to check with your credit card company about the degree of acceptability and available services before you leave home.

Traveller’s checks

Traveller’s checks are accepted, and these should be purchased before arriving in Norway.