[Silhouette]

The currency conversion rates can be checked by retrieving the charge's balance transaction

Sorry, I'm definitely missing something then. Where in the response to that request does it show the conversion rate? I only see the amount, currency and fee information, which doesn't seem to be any different to what looking up the original charge already told me.

[thairu]

Please let me know if this helps: https://gist.github.com/thairu/1bb35222aefd6e27aa07

[Silhouette]

Thanks for sharing that, it does make everything clear.

If it helps, I didn't see anything in the API documentation to suggest that the currency in the balance transaction (which is type of a Stripe record we don't understand and have never had to consider before) would be different to that of the charge. Checking the API Reference page as I write this, it currently refers to "pence" in the left-hand column when describing the amount and fees, even though the example in the right-hand column says "usd", and it gives no description at all for the currency field.

A quick clarification in those API docs, including an explicit mention that balance transactions are operating in terms of your pay-out currency where charges are in terms of your pay-in currency, might help a lot here. I imagine this, along with how to navigate from a charge to the corresponding balance transaction, will be FAQs for anyone implementing multiple currencies...