Since 1 Guyanaese Dollar is equal to 0.6417844405532107 Algerian Dinars, we could say that n Guyanaese Dollars are equal to 0.6417844405532107 times n Algerian Dinars. In other words, we could use the following formula:
Algerian Dinars = Guyanaese Dollars x 0.6417844405532107
For example, let's say that we want to convert 2.0 Guyanaese Dollars to Algerian Dinars. Then, we just replace Guyanaese Dollars in the abovementioned formula with 2.0:
Algerian Dinars = 2.0 x 0.6417844405532107
That is, 2.0 Guyanaese Dollars are equal to 1.2835688811064214 Algerian Dinars.