When trying to convert currencies, try using three-letter codes for the currency. To take something a bit more obscure than dollars and rupees as an example, "5

When trying to convert currencies, try using three-letter codes for the currency. To take something a bit more obscure than dollars and rupees as an example, "500 PLN to RSD" (Polish zloty to Serbian dinar) will definitely work in every search engine. As far as I understand it (I never actually looked it up to confirm), currency codes = two letter country codes + first letter of the noun from the currency name, so they're relatively easy to guess right.