Since 1 Namibian Dollar is equal to 0.05115089514066496 United States Dollars, we could say that n Namibian Dollars are equal to 0.05115089514066496 times n United States Dollars. In other words, we could use the following formula:
United States Dollars = Namibian Dollars x 0.05115089514066496
For example, let's say that we want to convert 2.0 Namibian Dollars to United States Dollars. Then, we just replace Namibian Dollars in the abovementioned formula with 2.0:
United States Dollars = 2.0 x 0.05115089514066496
That is, 2.0 Namibian Dollars are equal to 0.10230179028132992 United States Dollars.