Since 1 British Pound is equal to 1.81670358417 Brunei Dollars, we could say that n British Pounds are equal to 1.81670358417 times n Brunei Dollars. In other words, we could use the following formula:
Brunei Dollars = British Pounds x 1.81670358417
For example, let's say that we want to convert 2 British Pounds to Brunei Dollars. Then, we just replace British Pounds in the abovementioned formula with 2:
Brunei Dollars = 2 x 1.81670358417
That is, 2 British Pounds are equal to 3.63340716834 Brunei Dollars.