IHK grading scheme vs. linear school grade compared
Two grading models for exams, final assessments and school tests
The grading scale determines how points earned are converted into school grades. Germany has no nationwide standard system – teachers, schools and examination bodies can use different scales. The two most commonly used models are the IHK grading scheme and the linear school grade.
The IHK grading scheme was originally developed for vocational final examinations and is now widely used: from IHK (Chamber of Industry and Commerce) final exams to vocational school tests and university exams. The levels are deliberately uneven: the top grade of 1 requires at least 92% of the points – a demanding standard. Grade 4 (sufficient, passing) starts at 50%. Anyone scoring below 30% receives grade 6 (insufficient).
The linear school grade distributes the six grade levels evenly across the point range. A score of 100% earns a 1.0, 0% earns a 6.0. All values in between are interpolated linearly. This model is considered fair and transparent, since every percentage point counts equally. Many primary and secondary schools use similar linear scales.
For teachers and examiners, our calculator offers a quick check: enter the points and immediately see which grade results under the IHK scheme or the linear scale. The percentage value is also displayed, so you can compare both systems directly. This is especially useful for borderline scores – for example exactly 50% or exactly 92% – where an instant check is practical.