Comparing AliExpress and Credit Card Exchange Rates

AliExpress can charge you either in a selection of local currencies or in US Dollars.

Today, I tested their conversion rate against my Tandem cashback credit card.

With a charge of USD20.56 the exchange rates were as follows:

£ / $ Exchange Rate.$ / £ Exchange Rate.
AliExpress1 / 1.30621 / 0.7656
Credit Card1 / 1.33071 / 0.7515

Using the credit card to convert from Dollars equates to a 1.8% saving. I'll take that.