ATAR Calculator — Estimate Your ATAR From Scaled Scores

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What an ATAR is — and what an estimate can do

The ATAR — the Australian Tertiary Admission Rank — is a rank, not a mark: not a percentage, not an average of your subject marks, not a score out of 100. An ATAR of 85.00 means your overall Year 12 achievement placed you ahead of about 85% of the Year 12 age cohort — including students who left school early, because the rank is measured against the whole age group. ATARs run from 0.00 to 99.95 in steps of 0.05, and in most systems a result below 30.00 is simply reported as “30 or less”.

Every state and territory system builds the rank the same way: your subject results are scaled so that different subjects can be compared fairly, the scaled results are combined into a single aggregate, and your position in the state’s ranking of aggregates becomes your ATAR. The details — how many subjects count, which ones must count, and how big the aggregate is — differ between the six systems covered below — Queensland’s QCE, Victoria’s VCE, the NSW HSC, the SACE (SA and NT), Western Australia’s WACE, and the ACT. The rank itself travels: an ATAR earned in one state is recognised as equivalent in the others.

Because the official rank is issued only once, after final results, most students use this page as an atar predictor across the year: enter the scaled scores you expect, see the aggregate and the estimate, then adjust a subject or two and watch what changes. Used that way, an atar score calculator is a planning tool — it shows your ATAR score estimate months before results day, if your predictions hold. Remember its limit: real scaling is recalculated from your cohort’s actual results, so an estimate is a well-informed range, never a promise. The sections below explain how each state really builds the rank.

ATAR calculator QLD: the QCE system

Queensland’s ATAR is calculated by QTAC (the Queensland Tertiary Admissions Centre) from Queensland Certificate of Education (QCE) results. Used as a QCE ATAR calculator, the tool above now applies QTAC’s method when you pick Queensland — your best five scaled results form the TEA — and the eligibility rules and scaling notes are set out here from QTAC’s and the QCAA’s published method.

Each General subject produces a result out of 100. Because a mark in one subject is not directly comparable with a mark in another, QTAC applies inter-subject scaling: an iterative process that uses how each subject’s students performed across all of their subjects to place every subject’s results on a common scale. Your five best scaled results are then added together to form a tertiary entrance aggregate (TEA), every eligible student is ranked by TEA, and that ranking is converted into ATARs from 99.95 down.

Eligibility comes first. To receive a Queensland ATAR you must complete one of three combinations at Units 3 and 4 level: five General subjects; four General subjects plus one Applied subject; or four General subjects plus a completed VET qualification at Certificate III level or above. You must also satisfactorily complete an English subject — a grade of C or higher in English, English as an Additional Language, Literature, Essential English, or English and Literature Extension. English is an eligibility requirement, not a compulsory ingredient: your English result only enters the aggregate if it is one of your best five scaled results. Results can be accumulated within a five-year period. Two consequences follow for Queensland students estimating early: a sixth subject is cheap insurance, because only the best five count — and a weak English result does not cap your ATAR the way it can in Victoria or New South Wales, provided you clear the C-grade eligibility bar.

ATAR calculator VCE: study scores, scaling and the aggregate

Victoria’s ATAR is calculated by VTAC from VCE study scores issued by the VCAA. A study score is a ranking within one subject: it runs from 0 to 50, with a mean of 30 and a standard deviation of about 7 in every subject. The VCAA builds it from your graded assessments — school-assessed coursework and tasks, statistically moderated against your cohort’s exam performance, plus the end-of-year exams themselves. In a large subject, about 53% of students score 30 or above, about 9% score 40 or above, and only about 2% reach 45 or above — so a study score is a position in a queue, not a percentage, and a 40 is a far stronger result than “80%” would suggest.

From study scores to the aggregate

VTAC then scales each study score (a dedicated section below explains scaling in full) and builds your aggregate in a fixed shape: your best English-group study — English, English as an Additional Language, English Language or Literature — plus your next three best scaled scores, each counted in full, plus 10% of your fifth and sixth scaled scores if you have them. Up to six studies can contribute. Because scaled scores in the strongest-scaling subjects can rise above 50, real aggregates can exceed 200: in VTAC’s published 2025 table, an ATAR of 95.00 required a minimum aggregate of 169.85, and 99.90 required 208.08.

Minimum aggregates on VTAC’s published 2025 table

Source: VTAC, 2025 Aggregate to ATAR Table, 11 December 2025 (checked October 2026). The calculator above converts Victorian aggregates with this same published table.

The calculator above runs exactly this shape when you pick Victoria — best English-group score plus your next three, plus 10% of a fifth and sixth study — and converts it with VTAC’s own published 2025 table; the worked example below runs it end to end.

Estimating a study score before results day

Before December, nobody knows their study scores — which is why a study score calculator VCE students use works backwards: from your SAC ranking inside your school cohort and your expected exam performance to a plausible study-score range, using the published distribution (mean 30, most students between 23 and 37). Feed the middle of that range into the calculator above for a central estimate, then try the cautious and optimistic ends to see the spread. Your rank within your own school’s cohort matters more than the raw SAC percentage on your report, because moderation re-expresses your school’s coursework marks against the exam before the VCAA ranks you against the state.

UAC ATAR calculator: New South Wales (HSC)

In New South Wales, NESA issues your HSC marks and UAC (the Universities Admissions Centre) turns them into an ATAR. An HSC mark for a 2-unit course is the average of your examination mark and your school assessment mark — the assessment mark first moderated against your cohort’s exam performance — reported out of 100. HSC marks are standards-referenced: they describe what you achieved against the syllabus bands, and any number of students can earn a Band 6.

UAC then scales every course. Each unit of a course receives a scaled mark out of 50, adjusted so that a mark in one course means the same as the same mark in another, and your aggregate is the sum of your best 10 units — with one structural rule: the best 2 units of English must be included. The maximum aggregate is 500. To be eligible for an ATAR you need at least 10 units of Board Developed courses, across at least four subjects. (UAC removed the old Category A / Category B course categorisation from 2025, so it no longer limits what can count.) Most students study five or six 2-unit courses, so in practice the aggregate is usually your best five courses with English guaranteed a seat. UAC ranks all aggregates and converts the ranking into ATARs in 0.05 steps; it performs the same calculation for ACT students, whose system is covered below. Pick New South Wales in the tool above and it builds the aggregate exactly this way — best 2 English units plus your best 8 other units, out of 500 — and converts it by interpolating between UAC’s published 2025 points (450 → 99.10, 400 → 94.40, 350 → 86.45, 300 → 77.40, 250 → 67.55, 200 → 57.20, 150 → 46.80). For an HSC student the honest translation is: get your scaled marks per unit right, keep English strong because it cannot be dropped, and treat the estimate as the planning range it is.

In the calculator: enter each course’s scaled mark per unit (out of 50), choose 1 or 2 units, and tick the English box on your English course — the tool forces your best 2 English units into the aggregate first, exactly as UAC does.

SACE ATAR calculator: South Australia and the Northern Territory

South Australian and Northern Territory students earn the SACE (or its NT equivalent, the NTCET) and have their ATAR calculated by SATAC. Stage 2 subject grades are converted by a scaling process into scaled scores — for a 20-credit subject, a scaled score out of 20 — and SATAC builds your university aggregate out of 90 from your best 90 credits of Stage 2 study.

The aggregate has a fixed skeleton: the scaled scores of your three best 20-credit Tertiary Admissions Subjects (TAS) — 60 credits — plus the best 30 credits from the flexible option. That flexible 30 credits can be another 20-credit subject plus a 10-credit subject, three 10-credit subjects, half of a fourth 20-credit subject’s scaled score combined with other credits, or recognised studies, under SATAC’s counting rules. To qualify for a university aggregate at all you need at least 90 credits of TAS and recognised studies at Stage 2, with at least 60 of those credits from 20-credit TAS or valid subject pairs, and the precluded-combination and counting-restriction rules respected. SATAC then ranks the year’s aggregates and assigns each a percentile — that percentile is the ATAR. In short, an ATAR calculator SACE students use is only ever estimating SATAC’s best-90-credits aggregate; the rank itself is set by the cohort, which is why the aggregate — not any single subject — is the number worth tracking as your Stage 2 results come in. Pick South Australia in the calculator above and it builds the aggregate the same way — your best three 20-credit subjects plus your best flexible 30 credits — and converts it with SATAC’s own published 2025 table.

Western Australia (WACE): the TEA and the 10% bonuses

Western Australia’s ATAR is calculated by TISC from WACE results certified by the SCSA. Each ATAR course produces a combined score — half school assessment, half external examination — which is then scaled to a score out of 100. Your Tertiary Entrance Aggregate (TEA) is the sum of your best four scaled scores, plus a set of bonuses unique to WA: 10% of your scaled score in Mathematics Methods, 10% in Mathematics Specialist, and 10% of your best Language Other Than English (LOTE) score are added on top — including when those courses already sit inside your best four. Four perfect scores plus all three bonuses give the maximum TEA of 430.

You need scaled scores in at least four ATAR courses for a TEA to be calculated, and scores can be accumulated over up to five years, with your best score in each course counting if you repeat it. The bonus structure is the one place where subject choice genuinely is rewarded by design in WA: keeping an advanced mathematics course or a language through Year 12 adds up to 10 points per course to the aggregate before ranking even begins. TISC ranks every TEA and converts the ranking to an ATAR. Pick Western Australia in the calculator above and flag your LOTE, Mathematics Methods or Mathematics Specialist courses — the tool adds the 10% bonuses exactly as TISC does, including for a bonus course outside your best four. The conversion is labelled indicative because TISC publishes its TEA-to-ATAR table only after each year’s results.

The ACT: continuous assessment and the Scaling Test

The ACT runs the most different system in the country. There are no external subject examinations: students in ACT colleges are assessed continuously by their schools under the ACT Board of Senior Secondary Studies (BSSS), and a Tertiary package student’s unit scores are scaled using the group’s performance on the ACT Scaling Test (AST) — a common test of reading, writing and quantitative reasoning sat by all tertiary-package students — so that scores from different colleges and courses can be compared fairly. The result is a scaled course score for each course.

Your aggregate is then built from your three best major course scores, plus 0.6 of your next best course score (a major, a minor, or part of a double major). The BSSS supplies the aggregates and UAC converts them into ATARs against the same percentile framework it uses for NSW. Because assessment is continuous and school-based, the ACT rewards consistency across two years rather than a single exam block — and because the AST scales entire course groups, your cohort’s test performance lifts or tempers everyone’s course scores together. Pick Australian Capital Territory in the calculator above and it applies the same formula — best three major course scores plus 0.6 of your next best — with the conversion labelled indicative, because UAC converts ACT aggregates by ranking and publishes no ACT table.

How ATAR scaling works

ATAR scaling exists to answer one unfair question: how do you compare a strong result in one subject with a strong result in another, when the students in each subject are different? The answer every state uses is to judge a subject by its cohort. Scaling looks at how the students in a subject performed across all of their subjects. If the students in a subject generally score highly everywhere else too, that subject’s results are scaled up; if its students generally score lower elsewhere, its results are scaled down. Scaling therefore measures the strength of the competition in a subject in that year — it does not declare a subject “hard” or “easy”, and it neither rewards nor punishes you for choosing it: it re-expresses your result so that beating a strong field counts for more than beating a weak one.

The size of the adjustment is not small. The table shows what a raw study score of 40 became after scaling in the most recent published scaling at the time of writing — VTAC’s 2025 Scaling Report, published 11 December 2025 (VTAC publishes each year’s report with the December results, so the 2026 report appears in December 2026):

Read it correctly: a 40 in Latin was worth 53 because the small group of students who take Latin also excelled across their other subjects — not because Latin is inherently “worth more”. The same raw performance lands differently across subjects, and differently again next year: each year’s scaling is recalculated from that year’s results and published only after the fact. UAC, QTAC, SATAC and TISC run their own versions of the same cohort logic for the HSC, QCE, SACE and WACE. The practical lesson is the one the FAQ below repeats: pick subjects you can perform strongly in — a high raw score in a lower-scaling subject almost always beats a mediocre score in a high-scaling one, because scaling adjusts positions, it does not manufacture them. To test a single VCE subject, use the estimator below — it runs VTAC’s published 2025 scaling for all 94 studies VTAC scaled.

VCE study score estimator: raw score to scaled score

What did a raw study score become after scaling in 2025? Pick any of the 94 studies VTAC scaled, enter a raw score, and the estimator interpolates between VTAC’s published points.

Source and method: VTAC’s 2025 Scaling Report (11 December 2025) publishes the scaled score at raw 20, 25, 30, 35, 40, 45 and 50 for every study it scaled — all 94 are in the list above. This estimator interpolates linearly between those published points and rounds to the nearest whole point, matching how VTAC publishes the table; VTAC’s formal process carries scaled scores to two decimal places. Below a raw 20 it extends the 20–25 slope and never goes below zero. Checked October 2026 — the 2026 scaling will differ, because it is recalculated from that year’s cohort.

ATAR vs selection rank: what universities actually select on

Your ATAR is yours alone and identical everywhere — but no university actually selects on the raw ATAR. Each institution converts it into a selection rank for each course by adding adjustment factors (still widely called bonus points): adjustments for strong results in specified subjects, for equity circumstances — SEAS through VTAC in Victoria, the Educational Access Scheme through UAC and QTAC, and each university’s own equity and access schemes elsewhere — and for regional, school-based or other published schemes. The same ATAR can therefore become a different selection rank at every university, and a different one again for two courses at the same university.

That is also why courses publish a lowest selection rank — the lowest rank, adjustments included, that received an offer in the previous intake — rather than an “ATAR cut-off”. Use this page as the first half of an atar compass: get your estimated rank here, then point it at the published lowest selection ranks for your target courses, remembering that adjustments you qualify for may lift your rank above your ATAR. No selection rank calculator can print your rank for a specific course, because the adjustment half of the equation is set institution by institution, course by course, and applied only when you apply. What a calculator can do is make the ATAR half of that equation an honest estimate.

Worked example: a Victorian estimate, step by step

Take a VCE student whose raw study scores come in at 40 in five subjects. Using VTAC’s 2025 scaling (the estimator above has every study), a raw 40 became a scaled 46 in Mathematical Methods, 44 in Chemistry, 41 in Biology, 39 in English and 39 in Psychology. Pick Victoria in the calculator above, flag English as the English-group study and enter those five scaled scores: the primary four are English 39 + Methods 46 + Chemistry 44 + Biology 41 = 170, and Psychology adds its 10% increment of 3.9 — aggregate 173.90.

On VTAC’s published 2025 Aggregate to ATAR table, 173.90 converts to an estimated ATAR of 96.05 — it sits in that table’s 96.05 band (173.82–174.08), between the 96.00 line (173.56) and the 97.00 line (178.10) — and that is exactly what the calculator returns. The estimate is an illustrative planning figure built on VTAC’s published 2025 data; real ATARs are issued only by VTAC and the other state bodies, from that year’s real scaling.

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