Since 1 Japanese Yen is equal to 0.0128508311116 Brunei Dollars, we could say that n Japanese Yens are equal to 0.0128508311116 times n Brunei Dollars. In other words, we could use the following formula:
Brunei Dollars = Japanese Yens x 0.0128508311116
For example, let's say that we want to convert 2 Japanese Yens to Brunei Dollars. Then, we just replace Japanese Yens in the abovementioned formula with 2:
Brunei Dollars = 2 x 0.0128508311116
That is, 2 Japanese Yens are equal to 0.0257016622232 Brunei Dollars.