Since 1 US Dollar is equal to 8.557871 Norwegian Kroner, we could say that n United States Dollars are equal to 8.557871 times n Norwegian Kroner. In other words, we could use the following formula:
Norwegian Kroner = United States Dollars x 8.557871
For example, let's say that we want to convert 2 United States Dollars to Norwegian Kroner. Then, we just replace United States Dollars in the abovementioned formula with 2:
Norwegian Kroner = 2 x 8.557871
That is, 2 United States Dollars are equal to 17.115742 Norwegian Kroner.