Convert UK Bachelor Degree Grades to German Grade Scale
There is no universal system available for converting grades between national systems. For instance, in Germany, each university and even each faculty within a university may have its own system for "translating" grades from one system to another, and grades obtained between courses are not necessarily directly translatable. For instance, 70% of the points on an exam in one subject might constitute a 1,3 in one subject but (for instance) a 2,3 in another subject.

The only reliable rules are:


A 4,0 (4.0) is the minimum passing grade in any subject in a German university.
In classes where written exams are administered, the scale above 4,0 should be as uniform as possible. (In other words, the difference between the minimum points for a 1,0 or a 1,3 should be the same as between a 2,0 and a 2,3.)


But, as you can see, this still allows for a lot of latitude between different subjects.