Since 1 Tunisian Dinar is equal to 0.3143171460003143 United States Dollars, we could say that n Tunisian Dinars are equal to 0.3143171460003143 times n United States Dollars. In other words, we could use the following formula:
United States Dollars = Tunisian Dinars x 0.3143171460003143
For example, let's say that we want to convert 2.0 Tunisian Dinars to United States Dollars. Then, we just replace Tunisian Dinars in the abovementioned formula with 2.0:
United States Dollars = 2.0 x 0.3143171460003143
That is, 2.0 Tunisian Dinars are equal to 0.6286342920006286 United States Dollars.