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At this website, you can figure out how much your dollar is worth in about any currency unit in the world. This site may be particularly useful to you if you do, in fact, have only one dollar. In that case, you might want to consider moving to Bali to get the most bang for your buck.

On July 28, 2009—nothing special about this date; we just needed to pick one, and this one seemed as good as any—$1 was worth 0.60944 British pounds, and 1 British pound was worth $1.64085. If we let be U.S. dollars and P be British pounds, we can convert between dollars and pounds using the following formulas:

P = .60944D
D
= 1.64085P

Awesome. Now we can buy a bap (that's a type of bread, for those of you not in the know) with American money or a deep-fried Twinkie (a type of "bread"?) with British currency. How worldly we are.

Sample Problem

On July 28, 2009, how many British pounds could you get for $1,000,000?

When D = 1,000,000 then P = 0.60944(1,000,000) = 609,440. One million dollars gets you 609,440 pounds. Should be easier to squeeze into a briefcase at least.

Exercise 1

If $1 is worth 0.7 euros, how many euros can you get for $50?

Exercise 2

On July 28, 2009, how many dollars could you get for 200 British pounds?

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