In today's money, what is the value of £ 150? The British National Archives has a calculator for determining the value of old money and they indicate that 1690s £ 150 is the equivalent of £ 13,120 in today's currency. Converting British pounds to dollars yields merely $19,947 in 2010 currency. This can't be right.

The British National Archives also estimates that £ 150 in 1690 would have been equivalent to the amount of money a craftsman in the building trades would earn working 1,666 days.

There are 52 weeks/year times 5 working days = 260 working days/year. 1666/260 = 6+years of labor to earn £ 150. So £ 150 is not a small amount.

By today's standards if £ 150 equals 6 years of a worker's wages you would expect it to be more than $200,000.