OCR UMS converter
OCR's modular qualifications carried uniform marks; its reformed ones do not. For the certificates that do, the grade computes live.
Local onlyEvery calculation happens in this browser tab. Courses and grades are kept in your own browser so they survive a refresh. Nothing is uploaded, and the page keeps working offline.
An OCR uniform mark today is almost always on an old certificate. OCR's modular GCSEs and A-levels - the ones sat before England's reform to linear qualifications - reported every unit as a uniform mark, and those certificates are still being read by admissions offices and employers now. OCR's reformed qualifications are linear: awarded at qualification level from scaled marks, with no UMS anywhere on the results. If your OCR result is from a reformed 9 to 1 GCSE or a linear A-level, there is nothing to convert.
For the results that do carry uniform marks, OCR used the same ladder as every English awarding body, because the scale was a common design rather than a house one: grade A at 80 per cent of the unit's maximum uniform mark, B at 70, C at 60, D at 50, E at 40, extended at legacy GCSE by A* at 90, F at 30 and G at 20. That is what makes an OCR uniform mark directly comparable to an AQA or Edexcel one, and it is why the calculator above needs to know nothing about the board: enter each unit's UMS as a percentage of that unit's maximum and the overall percentage and grade compute live.
Two neighbours cause most of the confusion around OCR marks, and neither uses UMS. OCR's vocational Cambridge Technicals are graded on their own points system, not uniform marks, with their own grade boundaries pages. And Cambridge International - a different examining organisation, despite the shared ancestry - reports its international qualifications with percentage uniform marks (PUM) on statements of results, a same-idea, different-scale cousin documented in Cambridge's own guide to percentage uniform marks, and one that should not be read against the tables on this page.
Raw-to-UMS on an OCR paper worked the way it worked everywhere: the session's raw grade boundaries were published after results - OCR's grade boundaries archive still carries the legacy and specification-level UMS documents, series by series - and the conversion between adjacent points is a straight line, never one formula. With a session's points in hand, the raw mark to UMS converter runs that interpolation. The scale itself, its cap and A* mechanics, and its full boundary tables live on the UMS converter and UMS grade boundaries pages, with the other boards covered on the AQA and Edexcel pages.
The scale this page uses
| Grade | Percentage of maximum uniform mark |
|---|---|
| A | 80.0 |
| B | 70.0 |
| C | 60.0 |
| D | 50.0 |
| E | 40.0 |
| U (below E) | 0.0 |
| Award class | Minimum GPA |
|---|---|
| A | 80.00 |
| B | 70.00 |
| C | 60.00 |
| D | 50.00 |
| E | 40.00 |
Uniform mark boundaries are FIXED as percentages of a unit's maximum uniform mark, which is what makes them comparable between exam sessions: A 80%, B 70%, C 60%, D 50%, E 40%. The raw marks needed to reach them are set fresh each session and are usually different. Enter each unit's UMS as a percentage of that unit's maximum, weighted by that maximum, and the total is your overall UMS percentage. A* is NOT simply 90% overall - see the page.
Source. This scale is set by AQA, Uniform marks in A-level and GCSE exams, s 5 and Appendix A, which is the body that writes the rule. Click for authoritative source. We last read that document on 3 October 2026, and the sources page says when we check it again.
Questions this calculator gets asked
Does OCR still use UMS?
Not on its reformed qualifications, which are linear and carry no uniform marks. OCR uniform marks live on legacy modular GCSE and A-level certificates - still perfectly readable today, and still converted with the same fixed ladder this page uses.
What were OCR's UMS grade boundaries?
The same fixed national ladder as every board: A at 80 per cent of the unit's maximum uniform mark, B at 70, C at 60, D at 50 and E at 40, with legacy GCSE extending to A* at 90, F at 30 and G at 20. Only the raw marks required to reach those uniform boundaries changed between sessions.
Is an OCR UMS comparable to an AQA or Edexcel UMS?
Yes - that was the design. The uniform mark scale was common across England's awarding bodies, with the same fixed percentages, precisely so that a unit grade meant the same thing whichever board issued it. A 96 out of 120 is a grade A unit on any of them.
How do I read an old OCR modular certificate now?
The uniform marks on it are still exact: divide each unit's UMS by that unit's maximum and read the percentage against the ladder - 80 per cent and above was an A. Or enter the units into the calculator above, weighted by their maxima, and read the overall grade. Nothing about a legacy result has been revalued.
Do Cambridge Technicals use UMS?
No. OCR's Cambridge Technicals are vocational qualifications graded on their own points system rather than uniform marks, so their results should not be read against this page's tables.
Are Cambridge International percentage uniform marks the same as OCR UMS?
No. Cambridge International is a separate examining organisation, and the percentage uniform marks (PUM) it reports on statements of results - never on the certificate itself - are its own same-purpose scale on 0 to 100: a fixed representation of where a performance sat within a grade, independent of session difficulty. Not the English boards' UMS, and not interchangeable with it.
Is this OCR UMS calculator free, with nothing uploaded?
Yes. No account and no upload - your units and marks are handled in your own browser and never reach a server, and the page keeps working offline once loaded.
Keep this page
Your calendar opens a file saved on your own device. Nothing is sent to us. Results days by country
APA
MLA
Reading someone else's grades for a job or an admission? How to read a foreign grade
Other calculators
- UMS Grade Boundaries (Full Tables)The fixed UMS ladder at every common unit maximum, in one place.→
- Danish Grade Calculator (7-Point Scale)Denmark's 7-trin scale, ECTS-weighted - including the −3.→
- The Danish Grading Scale (7-Point Scale)The official 7-trin table, its ECTS letters, and the old 13-scale.→
- The Dutch Grading Scale (1 to 10)The 1-10 cijfers, the 5.5 pass, and the unused top of the scale.→
- Norwegian Grade Calculator (A-F)Norway's A-F letters as a studiepoeng-weighted snitt.→
- Swedish Grade Calculator (Jämförelsetal)Swedish gymnasium A-F as a gymnasiepoäng-weighted jämförelsetal.→
- The Canadian Grading Scale (Letters, 4.0 and 4.33)No national scale: 4.0 vs 4.33, percentages, and Quebec's R-score.→
- Convert between any two systemsTurn a grade from one country's scale into another's.→
- Every grading scale, side by sideWhat each country's scale is and what its grades mean.→