How currency conversion works?
Some people are confused by how currency conversion works, so let us explain!
As of today, Shopify does not support multiple currencies. This means that, at the end, all of your customers will be paying in your store's main currency (USD, for instance).
Our currency conversion tool just converts from one currency (your main currency) to another currency, using the today's exchange rates. You should consider the currency converter as a help for your customers. At the end, what they will pay in their currency may be slightly different to what the theme displays (because of bank international fees, conversion rounding...).