In Windows 10, Microsoft replaced the good old numbermachine with a new modern application. Recently, this application was renewed in terms of the working environment and also in terms of a new feature, it acquired a built-in currency converter.
If you remember the old application, the Calculator Plus, which was free to download from the Microsoft Download Center, had a currency converter and could import exchange rates from European Central Bank. But their built-in calculator Windows 10, never had a currency converter so far. This has changed and now the UWP (Store) version of the calculator now has an embedded converter.
The currency converter is included in version 10.1706.1862.0 of the UWP Calculator application and supports the majority of the world's currencies. Automatically obtains the latest exchange rates from Internet. It does not include any cryptocurrency like bitcoin etc.