Instituto Superior Técnico

Área Internacional

ECTS Grading System

The IST classification scale ranges from 10 to 20, linearly, in which 10 is the minimum mark to obtain approval. The awarding of ECTS classification is based on the distribution of marks obtained by all the students approved in the course unit in the last three academic years (can be extended to the last four or five years, if necessary), according to the following overall distribution:

ECTS Classification Mean % of achieving students in a course unit Definition
A 10 10% – Highest classifications on the 10-20 mark scale
B 25 25% – Following classifications on the 10-20 mark scale
C 30 30% – Following classifications on the 10-20 mark scale
D 25 25% – Following classifications on the 10-20 mark scale
E 10 10% – Lowest classifications on the 10-20 mark scale