30 credits in total before the Licentiate.
60 credits in total before the PhD defense (including at least 7.5 credits from GTS courses).
Note: You can usually ask to transfer up to 15 credits from your previous degree. See with your examiner.
https://www.chalmers.se/en/research/we-train-new-researchers/graduate-courses/
https://www.chalmers.se/en/education/your-studies/find-course-and-programme-syllabi/course-syllabus/
Important: To enroll in an undergraduate course, you need to send an email to the course examiner at least 2-3 months before the course start. Ask if there is a spot for you. If the answer is yes, you need to send an application form to be officially enrolled in the course via this link:
https://intranet.chalmers.se/en/forms/form-application-for-first-second-cycle-course-for-doctoral-student-at-chalmers/
After getting The course will then be added
About GTS courses: Generic and Transferable Skills (GTS)
List: https://chalmers.eu-west.catalog.canvaslms.com/browse/hr/gts
Important: there is a maximum limit to the number of credits you can get from GTS courses for your PhD. Talk with your examiner to know how much.