How this is worked out
UK degrees are not graded on a GPA. They produce a credit-weighted percentage, which is then classified:
First 70%+ · 2:1 60–69% · 2:2 50–59% · Third 40–49%
The weighting is by credits, so a 40-credit dissertation moves your average four times as far as a 10-credit module. This page shows the weighted figure and, more usefully, how many marks you are from the boundary above — which is the number students actually come looking for.
Year weightings vary by institution and are worth checking properly. A common pattern for a three-year bachelor's is year 2 counting 33% and year 3 counting 67%, with year 1 not counting at all. Others weight years 2 and 3 equally. A year abroad often gives 20/20/60, and an integrated master's commonly 20/30/50.
That variation is not academic. The same set of marks can classify differently under two weightings, and the difference between a 2:1 and a First has turned on it more than once.
There is no conversion to a US GPA on this page, and its absence is deliberate. A UK 70% is a First — the top classification. A US 70% is a C−. Any single number offered for that conversion asserts an equivalence that does not exist, which is why Oxford's careers service advises quoting the percentage rather than converting it.
A worked example
- Module 1
- 64% — 20 credits
- Module 2
- 68% — 20 credits
- Module 3
- 61% — 20 credits
- Dissertation
- 71% — 40 credits
- Total credits
- 100
- Weighted average
- 67.0%
- Classification
- Upper Second (2:1)
- Marks below a First
- 3.0
- To finish on 70% with 120 credits left
- an average of 72.5 on the rest
- A flat average of the four marks
- 66.0% — the dissertation weighting is what lifts it
Borderline rules, and why they are worth reading
Most institutions have a borderline mechanism: an average within a mark or two of a boundary can be lifted if enough credits sit in the higher band, or if the final-year profile does. The rules are specific, published, and almost nobody reads them until they are 0.4 below a 2:1.
Common shapes include a zone of consideration between 68 and 70, a preponderance rule requiring half or more of the final-year credits at the higher class, and an exit-velocity rule that weighs the trajectory of your marks. Some boards also discount your worst 20 credits.
Read your programme regulations while you can still act on them. Knowing that half your final-year credits at 70 or above triggers a borderline review changes which modules are worth the effort.
Where the credits are is where the leverage is
A 40-credit dissertation is a third of a 120-credit year. It carries four times the weight of a 10-credit module, and improving it by five marks does more for your average than improving four small modules by five marks each.
Students routinely spread effort evenly across modules that are not evenly weighted. If your average is close to a boundary, the arithmetic is worth doing before deciding where the next fortnight goes.
The same logic applies to year weightings. Under a 33/67 split, a mark in your final year counts twice as much as the same mark in your second — so a slow start matters far less than most second-years fear.
What the classification is used for
A 2:1 is the common minimum for graduate schemes and for many taught master's programmes, which is why the 60% boundary carries so much weight relative to the marks either side of it. A single mark can change which applications you are eligible for.
Some employers ask for a percentage or for module-level detail instead, particularly in technical fields where the specific modules matter more than the aggregate. Others have moved to contextual or blind screening and ask for neither.
A percentage is the more portable figure internationally, and the more honest one. It carries the actual information; the classification compresses it into one of four buckets.
Why UK and US marks do not convert
UK marking compresses attainment into a much narrower band than US grading does. A first-class mark starts at 70 and marks above 80 are genuinely rare in essay-based subjects; in the US, 70% is a C− and the bulk of the distribution sits between 80 and 100.
Institutional conversion tables exist because someone has to make a decision — Sheffield Hallam, for instance, maps a US A to 75% and a US D to 35%, which is a UK fail. But that is a policy choice made by one institution for one purpose, not an arithmetic fact.
Oxford's careers service advises quoting the percentage and explaining the system rather than converting. This page follows that advice: it gives you the percentage and the classification, and does not manufacture a GPA.
Assumptions and sources
- UK classifications
- Imperial College London and University of Leicester, Guide to Degree Classification. https://le.ac.uk/
- UK to US conversion
- University of Oxford Careers Service, "Translating qualifications" — advises quoting the percentage rather than converting, because no equivalence exists. https://www.careers.ox.ac.uk/translating-qualifications
- Year weightings
- The patterns offered are common shapes drawn from published institutional regulations. They vary by institution and by programme — yours is the one that counts. checked 2026-08
- Not covered
- Borderline and discounting rules, condonement, resit capping, Scottish four-year degree structures, and integrated foundation years.