Since 1 Euro is equal to 20.463704401528233 Namibian Dollars, we could say that n Euros are equal to 20.463704401528233 times n Namibian Dollars. In other words, we could use the following formula:
Namibian Dollars = Euros x 20.463704401528233
For example, let's say that we want to convert 2.0 Euros to Namibian Dollars. Then, we just replace Euros in the abovementioned formula with 2.0:
Namibian Dollars = 2.0 x 20.463704401528233
That is, 2.0 Euros are equal to 40.927408803056466 Namibian Dollars.