WACE assessment, explained

WACE ATAR calculator

Enter the combined marks you expect (or already have) and get a rough ATAR. It runs TISC's published best-4-plus-bonuses TEA rule over its 2025 scaling data — TISC publishes no raw-to-scaled table for any course, so the scaled score here is modelled from your mark's position in the course's real scaled-score spread, not read off a published function the way the HSC and QCE calculators' scores are.

Scaled-score distributions are from TISC's own 2025 course statistics summary; the TEA-to-ATAR anchors are from TISC's published 2025 TEA/ATAR summary table (tisc.edu.au). TISC does not publish a raw-mark-to-scaled-mark table the way UAC and QTAC do, so this calculator models that one step — reading a scaled score off each course's real percentile curve at the rank your entered mark implies — and says so on the page. It applies TISC's own best-4-plus-bonuses TEA rule to the result. Not an official ATAR, no bonus points beyond LOTE/Methods/Specialist, no special consideration.

Your subjects

TISC's TEA is your best four scaled scores, plus 10% of your best LOTE scaled score and 10% of Mathematics Methods and/or Specialist's scaled scores — those two count even if they are not in your best four, so it's worth entering them regardless. Leave a row blank if you're doing fewer than six courses.

Only courses TISC published full 2025 scaled-score percentile data for (50+ students) are listed — a smaller course gets no percentile columns to model from. Coverage is narrower than the HSC and QCE calculators': WACE has around 80 ATAR courses in total and 43 are listed here.

Subject	Raw	Scaled
English *	70	64.9
Human Biology	70	65.3
Chemistry	70	70.2
Physics	70	69.7
Mathematics Methods	70	71.4

TEA (best 4 + bonuses, out of 430) 283.82

93.00

estimated ATAR, roughly 89–97

* one of the three courses (English, Literature, EAL/D) that satisfies WA universities' competence-in-English requirement at a scaled score of 50+ — that's a university admission rule, not a gate on getting an ATAR at all, unlike the HSC and QCE calculators' English requirement. TISC's own percentile file gives only each course's scaled-score spread, not a raw-mark function, so this estimate's scaled scores carry a wider band than the HSC or QCE calculators' — see the note above the calculator.

How a WACE ATAR is actually built

The best-4-plus-bonuses rule

Your Tertiary Entrance Aggregate (TEA) is your best four scaled scores, added together, plus 10% of your best Language Other Than English (LOTE) scaled score if you have one, plus 10% of your Mathematics Methods and/or Mathematics Specialist scaled score if you have either — both bonuses apply even when that course isn't one of your best four. The maximum possible TEA is 430. You need at least four scaled scores for an ATAR to be calculated at all.

Scaling

Your combined mark in one course (school assessment moderated against exam results, then combined with the exam mark) is not what goes into that sum. TISC and SCSA jointly scale every course so the state-wide average scaled score sits at 60 — the same principle VTAC, UAC and QTAC use, just without a public function from raw mark to scaled mark for any WA course.

TEA to ATAR

Unlike QCE, TISC does publish a direct TEA-to-ATAR table — a real conversion, used as-is here — because a candidate's ATAR ranks their TEA against the whole WA school-leaving-age population, using the same population participation model UAC and QTAC's methods are built on. How WACE marks are moderated, scaled and calculated is its own guide.

Practise the subjects that move it most

The courses with the lowest scaled marks above are the ones where a few extra marks change your TEA the most. StudyDesign AI marks a written answer against the real SCSA marking key for your course and shows exactly which criterion was missed, so you can see where those marks actually are.

Mark an answer free