Grading systems and GPA conversion across countries
Why percentages, letter grades and GPAs are not interchangeable, who is allowed to convert them, and how admissions offices actually read a foreign transcript.
Students treat grade conversion as arithmetic. Admissions offices treat it as interpretation. A 16/20 from one French institution is not the same signal as a 16/20 from another; a first-class UK degree is not a fixed percentage; and an online GPA calculator is not a credential evaluation. Getting this wrong wastes application fees and produces statements that claim equivalences nobody authorised.
This guide explains how major grading languages differ, who is entitled to convert them, and how to present a foreign record without inventing a number.
The problem is not the scale — it is the distribution
Two systems can both run from 0 to 100 and still mean different things if one awards 90 rarely and the other awards it routinely. Conversion tables that ignore distribution mislead. That is why serious evaluators look at:
- The grading scale printed on the transcript
- Any institutional grade distribution or class ranking provided
- Whether the programme is known to the receiving office
- Whether a national framework (e.g. UK classifications, ECTS) sits behind the mark
If your transcript has a legend on the back, that legend is part of the document. Do not detach it.
Major grading languages, briefly
| System | What you usually see | What readers watch for |
|---|---|---|
| US GPA | Letter grades mapped to a 4.0 (sometimes 4.3) scale | Whether the GPA is weighted, cumulative, and calculated by the issuing registrar |
| UK classifications | First / 2:1 / 2:2 / Third, often with percentage marks beneath | Degree classification and year weighting, not a single average alone |
| ECTS / Bologna | A–F grades and credit points | Credits and learning outcomes more than letter-to-GPA math |
| Percentage systems | 0–100 with varying pass marks | Pass threshold and whether high marks are common |
| Out-of-10 / out-of-20 | Common in parts of Europe, Latin America, Asia | Institutional norms; mid-scale marks can be strong |
None of these maps cleanly onto another without context. A UK 2:1 is not “a B+” in any official sense, even though informal guides say so constantly.
Who is allowed to convert your grades
- The receiving university — many do their own reading and publish country notes for applicants. Follow their instructions first.
- A credential evaluation service they name (WES, ECE, ENIC-NARIC routes, and country-specific bodies). See credential evaluation and document legalisation.
- Your issuing registrar — some will provide an official explanation letter or percentage equivalent. Ask before inventing one.
Do not self-convert on the application form
If a form asks for GPA and your institution does not issue one, use the field instructions: often “N/A”, leave blank, or enter the scale as printed. Self-converted GPAs are a common integrity problem and are easy to spot when the transcript arrives.
How admissions readers actually use foreign marks
In practice, readers do one or more of the following:
- Compare you against other applicants from the same institution or national system
- Look for trajectory (improving final years matter more than a weak first year in many systems)
- Weight advanced / major courses more heavily than early electives
- Check minimum thresholds published for that country on the programme page
- Send borderline cases to a credential evaluator
A single converted number is rarely the whole decision. The transcript’s pattern is.
UK classifications without the folklore
UK undergraduate degrees are classified, not GPA’d. Typical band language:
- First-class honours — highest classification
- Upper second (2:1) — the modal competitive threshold for many postgraduate and scholarship routes
- Lower second (2:2) and Third — still degrees; some routes accept them with compensating strengths
Percentage boundaries vary by institution and sometimes by department. Year weighting also varies (final year often counts more). Quote your classification and the transcript; do not invent a GPA equivalent unless the receiving office asks for one through a named method.
What to put in a personal statement or CV
- State the grade as issued: “Licenciatura, 8.4/10” or “BSc (Hons) Upper Second-Class”
- Include the scale and institution name next to it
- If a class rank or cohort percentile is official, include it
- If an evaluator has produced a report, cite that report’s conclusion rather than your own arithmetic
Related: comparing universities and English language tests compared.