18 teaching hours shall be equal to 1 credit.

Calculation of practical credits shall be stipulated by the universities.

•  Enforcement Rules of the University Act，Article 23

A credit at National Tsing Hua University means 18 periods per semester in a particular course, and one period lasts 50 minutes. For Lab courses, one credit requires a 2~3 hours attendance per week for one semester.

• National Tsing Hua University Academic Regulations