WooCommerce 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 in real time. 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 via the widget settings:
On the frontend:
Magic! As an added bonus, when users check out, the converted total is also stored so you know what price they saw.