Download for Windows
calibre works on Windows 8 and 10.
While you wait for the download to complete, please consider contributing to support the development of calibre.
Previous releases of calibre are available here.
If you are using Windows 7 or Vista please, use calibre 3.48, which works with all Windows 7/Vista machines, from here. Simply un-install calibre and install 3.48, doing so will not affect your books/settings.