The Woocomerce Currency Converter Widget lets you offer a dynamic currency switcher for displaying product prices and totals.
The widget makes full use of money.js and the Open Source Exchange Rates API allowing it to dynamically grab the latest exchange rates, and substitute displayed prices on the fly. All prices formatted by WooCommerce are updated, even totals. Checkout is still done using your store’s base currency, but the converted price is also stored for your reference.
You can add and convert to as many currencies as you want through the widget settings:
On the frontend:
Magic! As an added bonus, when a users checks out, the converted total will also be stored in the order so you know what price they saw.