Convert Chinese percentage scores to US GPA
Most Chinese universities record grades on a percentage scale (百分制) from 0 to 100, with 60 as the pass mark. Chinese marking is strict — scores above 90 are uncommon — so a naive percentage ÷ 25 overstates the result. US graduate admissions instead use non-linear conversion tables. This tool applies either the common stepped table or the simpler WES 4-tier table to give your US 4.0 GPA.
How it works
The standard non-linear table maps score bands to grade points:
90–100 → 4.0 (A)
85–89 → 3.7 (A-)
82–84 → 3.3 (B+)
78–81 → 3.0 (B)
75–77 → 2.7 (B-)
72–74 → 2.3 (C+)
68–71 → 2.0 (C)
64–67 → 1.5 (C-)
60–63 → 1.0 (D)
< 60 → 0.0 (F)The WES 4-tier table is coarser: 85–100 = A (4.0), 75–84 = B (3.0), 60–74 = C (2.0), below 60 = F (0.0). For example, a score of 86 gives 3.7 on the standard table but 4.0 on the WES table — which is why the table you choose matters.
Why the tables are non-linear
Chinese university grading culture produces a compressed distribution at the top end. In many departments, a score above 90 is reserved for genuinely exceptional work — professors do not routinely award 95s and 98s the way some US institutions do. A student with an 82 average in a rigorous Chinese engineering programme may actually be performing at a level equivalent to a US 3.3 (B+), even though 82 ÷ 25 = 3.28 happens to be numerically similar. The non-linear tables correct for this cultural difference in marking standards rather than treating the numbers as directly comparable.
The WES 4-tier table emerged as a practical simplification for credential evaluators who process large volumes of transcripts quickly. It is more forgiving at the top end (85 = 4.0 rather than 3.7) and can overstate lower scores.
Which table does your target programme use?
- WES (World Education Services): primarily used for Canadian immigration and some US state educational evaluations; the 4-tier approach is typical
- ECE (Educational Credential Evaluators): used by many US universities; may use the stepped non-linear table or their own internal conversion
- Direct university evaluation: top US graduate programmes (MIT, Stanford, Caltech) often have their own conversion guidelines published in their admissions FAQs; check before assuming
When in doubt, ask the admissions office which method they apply. Sending a request saying “I attended a Chinese university — which conversion table do you use for percentage scores?” is a routine and appropriate question.
Worked example
A student graduates from a mid-tier Chinese university with the following average scores: Engineering Mathematics 88, Programming 82, Database Systems 79, Physics 91, English 74.
Using the standard non-linear table:
- 88 → 3.7, 82 → 3.3, 79 → 3.0, 91 → 4.0, 74 → 2.7
Unweighted average GPA: (3.7 + 3.3 + 3.0 + 4.0 + 2.7) / 5 = 3.34
Using WES 4-tier:
- 88 → 4.0, 82 → 3.0, 79 → 3.0, 91 → 4.0, 74 → 3.0
Unweighted average GPA: (4.0 + 3.0 + 3.0 + 4.0 + 3.0) / 5 = 3.4
The results are close in this case but can diverge more when scores cluster near 85 or near 75.
Tips and notes
- Confirm which table your target university or credential evaluator uses; WES and the stepped table can differ by a full grade.
- 60 is the passing line at most Chinese universities; below it the course is failed.
- For admissions, send your full transcript — committees often recompute GPA from individual courses rather than trusting one converted figure.
- A Chinese 90+ is genuinely excellent and reliably maps to a US 4.0 / A.