Since 1 British Pound is equal to 366.95136381504005 Sri Lankan Rupees, we could say that n British Pounds are equal to 366.95136381504005 times n Sri Lankan Rupees. In other words, we could use the following formula:
Sri Lankan Rupees = British Pounds x 366.95136381504005
For example, let's say that we want to convert 2.0 British Pounds to Sri Lankan Rupees. Then, we just replace British Pounds in the abovementioned formula with 2.0:
Sri Lankan Rupees = 2.0 x 366.95136381504005
That is, 2.0 British Pounds are equal to 733.9027276300801 Sri Lankan Rupees.