WJEC A-level Maths grade boundaries 2025: raw marks and the 600 scale

WJEC A-level Maths grade boundaries June 2025

The Maths A level has the largest scale WJEC uses for our subjects. Its units carry 150, 90, 210 and 150 uniform marks, adding to 600, and the AS part is 240. The unit grades, a to e, sit at 80%, 70%, 60%, 50% and 40% of each unit's uniform marks, per the specification.

Raw marks per unit, 2025

Below are the 2025 raw marks from the grade converter, with the 2026 change in the last column.

Adding up a candidate

Suppose raw marks of 70, 44, 58 and 40. The 2025 converter gives 110, 68, 155, 111, so the total is 444 of 600. That is a B, 36 short of A at 480. The A2 units give 266, below the 324 an A* requires.

How the A* works in Maths

The A* rule uses 90% of the A2 uniform marks, which is 324 of 360 in Maths. Because Unit 3 is worth 210, a candidate who is weak there cannot make it up in Unit 4, which tops out at 150.

Senedd Research reports 10.5% of Welsh A level entries at A* in 2025 and 29.5% at A* or A.

The three sizes of unit are worth noting. Unit 1 (150 uniform marks) and Unit 4 (150) carry equal weight, but an A took 79 raw marks in one and 45 in the other. Unit 2 (90) is the smallest. A strong plan puts revision time against uniform marks, not against how large the raw boundary looks.

One unit worked through

Take AS Unit 1 in 2025. The unit grades are a at 79 raw marks (120 uniform marks), b at 66 (105), c at 53 (90), d at 41 (75) and e at 29 (60). A candidate with 70 raw marks sits between the b and a boundaries, and the converter gives 110 uniform marks. That is above the 105 for a b and below the 120 for an a, so the unit result is a b.

How the AS units carry into the 600

In Wales the AS units count towards the A level. AS Unit 1 (150) and Unit 2 (90) make the 240-mark AS, where an A is 192, a B is 168 and a C is 144. A candidate with 110 and 68 uniform marks has 178, a grade B at AS, and those same 178 marks go into the A level total. The A2 units then have to add enough to reach 360 for a C, 420 for a B or 480 for an A.

Because the AS marks are banked, a strong AS gives a head start. A candidate with 178 needs 302 from A2 for an A, which is 84% of the 360 available there. That is why the A* test, which looks only at the A2 units, is separate from the overall A.

Reading the 2025 table

• AS Unit 1 asked the most. An A needed 79 raw marks.
• Unit 4 asked the least for an A. It needed 45.
• The pass line is low in Unit 4. An E needed 16 raw marks.

Compare with a daily paper

Try Algebra and Functions, Calculus, Statistics or Mechanics. They are 8-question papers of 25 to 35 marks, written by us and not by WJEC. Treat your share as a rough pointer against 80% for an A.

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UK · A-levelWJEC A-level Maths grade boundaries 2026WJEC A-level Maths 2026 boundaries: the 600-mark UMS scale, raw marks for all four units, the A* rule of 324 and what changed from 2025.