With YITH Multi Currency Switcher for WooCommerce you can enable a multi-currency system in your shop and let your users see and pay for products in their own local currency.
If used in combination with YITH Gift Cards, the gift card amounts will be automatically converted into the different currencies configured on the site. The converted amounts can also be edited by the admin if needed.
After installing and activating both plugins, you will find a new option in the gift card product edit page named Set amount in all currencies. By enabling it, the different gift card amounts will be automatically converted into the currencies you have configured on your site.