A grade can look high on one numerical scale and ordinary on another. Dividing by the maximum mark does not necessarily create a meaningful international equivalent. A grade-distribution table adds context by showing how the scale was used within a defined reference group, but a student still needs the authorized institution's conversion decision.

The University of Bologna explains that its ECTS tables report distributions for homogeneous student groups and support comparison of cumulative percentages. It also distinguishes those tables from other letter scales. The example below uses invented categories and counts; it is not a Bologna grading table or an official conversion between any national systems.

Read the reference group and period

Suppose Institution X publishes a fictional distribution of one hundred passing results within a stated subject and study cycle. It has three descending grade categories, X1, X2 and X3. Institution Y has a separately defined, comparable fictional group with categories Y1, Y2 and Y3.

Category, highest first X count X cumulative share Y category Y count Y cumulative share
X1 20 20% Y1 10 10%
X2 30 50% Y2 40 50%
X3 50 100% Y3 50 100%

X2 occupies the cumulative band after 20% through 50%. Y2 occupies the band after 10% through 50%. Those bands overlap, but they do not coincide exactly. The table cannot locate a particular X2 result precisely within its thirty-result group. Nor does it by itself establish that every X2 must be awarded Y2.

This is why a distribution is contextual evidence rather than a universal lookup rule invented by the applicant. An institution may have an approved procedure for resolving overlapping bands or other conversion questions. Ask the receiving institution which procedure it applies and what documents it requires.

Do not confuse credits with grades

Credit recognition asks whether learning counts toward a programme and how much credit is awarded. Grade conversion asks how an assessed result is represented. A learning agreement or accepted credit total does not automatically settle the grade to be recorded.

Keep the original transcript, scale explanation, applicable distribution table and any formal conversion decision together. Confirm whether the receiving institution records a converted numerical grade, a pass result or another approved outcome. Do not assume every exchange follows the same practice.

If a form requests an original mark, provide that mark in the required format rather than replacing it with a self-calculated equivalent. If it requests a conversion, follow the stated authorized method. A personal spreadsheet should remain labelled as an exploratory calculation unless the institution explicitly adopts it.

Check comparability before using the table

Identify the field, study cycle, period and population behind each distribution. A table of passing examination results is not necessarily a distribution of individual students' final degree grades. Repeated assessments, excluded fails or different aggregation rules can affect its meaning.

An older table may remain relevant if the institution says so, but its date should not disappear from the comparison. Do not select a different subject's table merely because it produces a more favourable apparent position. When the reference group is unclear, ask for clarification rather than making the conversion look precise.

The transfer credit progress guide addresses how accepted learning fits an award. This worksheet adds a separate grade-context check. The useful outcome is a documented original result, a correctly scoped distribution and a clear route to an authorized decision. It avoids treating a percentage of the maximum, a letter that looks familiar or an overlapping percentile band as a guaranteed international equivalence.