Edexcel UMS converter

If you are converting Edexcel uniform marks in this decade, you are almost certainly an International A Level student. Pearson's IALs are the modular qualifications it examines around the world, and modular is the operative word: results are issued unit by unit, each unit's raw mark is converted to a uniform mark, and the subject grade is read off the UMS total. Pearson itself draws the line plainly for its UK qualifications: uniform marks apply to modular qualifications, and "this does not apply to Linear qualifications, which now use scaled subject marks and are awarded at qualification rather than at paper level". A reformed UK Edexcel GCSE or A-level has no UMS on it anywhere.

On every modular Edexcel unit the grade boundaries are the same fixed percentages of that unit's maximum uniform mark: A at 80 per cent, B at 70, C at 60, D at 50, E at 40. The aggregation works the same way: a six-unit International Advanced Level totals 600 uniform marks and grade A sits at 480, which is 80 per cent again, with the International AS read the same way across its own units. The calculator above runs exactly that arithmetic: enter each unit's UMS as a percentage of that unit's maximum, weighted by the maximum, and the overall percentage and grade band compute live.

The A* is a two-part test, not a higher boundary. Pearson's own IAL results guidance states both parts: grade A on the qualification overall, plus a high-level performance at International A2, "scoring at least 90% of the A2 UMS marks" - 270 of 300 where three units are A2. For IAL Mathematics it gives the exact figures: at least 480 uniform marks overall, and at least 180 of the 200 combined maximum on the P3 and P4 units together. That second condition is invisible to any overall-percentage calculator, this one included, which is why the tool reports the subject grade and leaves the A* to the split the certificate actually shows.

Converting raw marks to UMS needs your own session's table. Pearson publishes the boundaries for each examination series alongside results, on its grade boundaries page - every International A Level series has its own document there. The conversion between the published points is piecewise linear - a straight line drawn between adjacent boundaries, never one formula. If you have this session's raw boundaries in front of you, the raw mark to UMS converter interpolates between them the same way the awarding body does. For what the scale itself means, the fixed ladder at every unit maximum, and the other boards' versions of all this, see the UMS converter, the UMS grade boundaries tables, and the AQA and OCR pages.

Do Edexcel exams still use UMS?

The modular ones do, which today means Pearson's International A Levels and International AS qualifications, plus any legacy modular certificate being read now. Reformed UK Edexcel GCSEs, AS and A-levels are linear and carry no uniform marks at all - Pearson states that linear qualifications use scaled subject marks and are awarded at qualification level, not paper level.

What are the Edexcel UMS grade boundaries?

Fixed percentages of each unit's maximum uniform mark: A at 80 per cent, B at 70, C at 60, D at 50 and E at 40. On a unit with a maximum of 100 uniform marks that is 80, 70, 60, 50 and 40 exactly; on a maximum of 120 it is 96, 84, 72, 60 and 48. The percentages never change between sessions - only the raw marks needed to reach them do.

How many UMS do I need for an A in an International A Level?

80 per cent of the maximum, at both levels of the qualification. On a six-unit IAL totalling 600 uniform marks, grade A is 480. On each individual unit, grade A is 80 per cent of that unit's own maximum. The same one ladder produces both numbers.

How do I get an A* in an Edexcel IAL?

Two conditions together: grade A on the qualification overall, and at least 90 per cent of the maximum uniform mark across the A2 units - 270 out of 300 where the A2 comprises three units. In IAL Mathematics the 90 per cent is measured on P3 and P4 together. An overall UMS percentage alone can never settle an A*, because it cannot see how the marks split between AS and A2 units.

How do I convert my Edexcel raw mark to UMS?

With your own session's published boundaries, and no other way. Pearson sets raw grade boundaries fresh for every series and publishes them with results; between adjacent published points the conversion is a straight line. A raw mark halfway between the B and A raw boundaries converts to a uniform mark halfway between 70 and 80 per cent of the unit maximum. The raw to UMS converter on this site runs that interpolation once you give it the session's points.

Why is my UMS percentage different from my raw percentage?

Because they measure different things. The raw percentage is the share of the paper's marks you scored; the uniform mark is where that performance sits on a fixed scale once the session's difficulty is accounted for. On a hard paper the grade A raw boundary drops, so a lower raw percentage converts to the same 80 per cent uniform mark.

Is this Edexcel 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.