Soulver supports currency conversions. Here are some examples of how to do it:
Soulver's currency keyboard makes it quick to write these kinds of problems.
For example, let's imagine you wanted to convert 20 Euros into American dollars. Type 20, then tap EUR, then tap USD. The "in" is inserted for you.
The latest currency rates are downloaded from Yahoo Finance hourly.
Not all currencies are enabled by default to prevent needlessly downloading rates data. To add a currency not in the list: