The Solo Leveling novel has a total of approximately 15 volumes. However, the number could be slightly different based on regional releases and specific publishing details.
The number of volumes of Solo Leveling manga varies. It's constantly updated, so it's best to look up the most current count on reliable manga databases or from the publisher's announcements.
As of now, there are a specific number of volumes, but it might change depending on new releases. You can check the latest information on reliable manga sites or forums.