You can do a foreign exchange on Crypto Capital.
There are two ways to do currency conversions, both start by making a New Transfer.
You can decide if you want to "convert" X amount of your currency to the other currency, or perhaps "send" that same X amount of the other currency from your original currency.
In both cases you will be given a price for the conversion. The price given is time sensitive and only applies for a few minutes. A timer that locks this price for you will display with a countdown. You have to decide pretty quickly if you agree to the conversion price offered, as it is not guaranteed once the timer expires.
A currency conversion fee is added of 2% above the market price.