ATAR, Explained
From a VCE assessment to a university offer
ATAR is a RANK
ATAR ranges from 0.00 to 99.95 — the top rank is 99.95, not 100.
Reported in increments of 0.05.
ATARs below 30 are reported as "less than 30" on the ATAR statement.
The ATAR Machine
Click each stage to understand what transforms between steps. These are all different concepts.
Before an ATAR: VCE Pathway Requirements
VCE completion typically requires:
- At least 16 units
- 3 units from the English group including a Unit 3–4 sequence
- At least 3 other Unit 3–4 sequences
For an ATAR, additionally:
- Study scores in at least four subjects
- Including an English-group study
VCE Study Score
Calculated by VCAA. Ranges from 0 to 50.
Relative to other students who undertook the same study in the same year.
Large-study distributions have mean approximately 30 and standard deviation 7.
Most scores fall approximately between 23 and 37.
Subject Assessment Explorer
Choose a VCE study to see its assessment structure and contribution weightings.
Statistical Moderation
After VCAA moderation
Both schools' results are aligned to a common external scale. Student rank order within each school is preserved.
VCAA statistically moderates school-based assessment to make school results comparable.
Moderation changes the numerical scale of school-based assessment.
It preserves the student rank order determined by the school.
External examination performance is the principal common reference scale.
"Does my school affect my ATAR?"
A raw SAC percentage at one school cannot be directly compared with the same raw percentage at another. Statistical moderation exists specifically to align school-based results. What matters is the student's assessment performance and the moderation process — not simply the school's prestige.
Does the GAT count toward my ATAR?
The GAT is not simply added into the ATAR aggregate.
GAT's indirect roles:
- Contributes to statistical moderation in some studies
- Checking unusual external assessment performance
- Derived Examination Scores (DES) where applicable
VTAC Scaling
VTAC scales every study score so scores across different studies can be compared fairly.
English — Historical 2025 scaling
| Raw Study Score | Scaled Score (2025) | Change |
|---|---|---|
| 20 | 17.8 | -2.2 |
| 25 | 23.5 | -1.5 |
| 30 | 29.5 | -0.5 |
| 35 | 35.8 | +0.8 |
| 40 | 42.0 | +2 |
| 45 | 48.0 | +3 |
| 50 | 53.5 | +3.5 |
Historical 2025 data. Future scaling will differ.
Myth: "Choose subjects that scale up."
Reality: A scaled-down subject in which you perform strongly can contribute more than a scaled-up subject where you struggle.
Myth: "Scaling is fixed."
Reality: Scaling is recalculated for each cohort/year.
Myth: "A subject scaling +5 means +5 ATAR."
Reality: Scaled study scores contribute to an aggregate, which is then converted to an ATAR.
What Parents Often Get Wrong
Myth: "ATAR 85 means 85%."
Reality: ATAR is a rank, not a percentage mark.
Myth: "My child's SAC average is 90%, so their study score will be about 45."
Reality: Study scores depend on statewide relative performance and assessment weighting/moderation, not raw school percentages.
Myth: "Subjects that scale down are bad."
Reality: Performance in a suitable subject can outweigh the effect of scaling.
Myth: "All six subjects count equally."
Reality: Primary four count fully; normal fifth/sixth scored studies generally contribute 10%.
Myth: "English only matters for completing VCE."
Reality: An eligible English-group scaled study score must be part of the primary four.
Myth: "SEAS increases the ATAR."
Reality: SEAS can affect a course selection rank; the ATAR itself remains unchanged.
Myth: "GAT gives ATAR bonus points."
Reality: The GAT has quality-assurance/moderation/DES roles rather than being simply added to the ATAR.
The Primary Four
Your highest 4 permissible scaled scores — with one critical rule.
MANDATORY
English*
Highest English-group score
#2
Next highest
Permissible scaled score
#3
Next highest
Permissible scaled score
#4
Next highest
Permissible scaled score
5th study
10% of scaled score
6th study
10% of scaled score
ATAR Scenario Explorer
Enter hypothetical study scores to explore how the ATAR system works. Uses historical 2025 scaling and conversion data.
Primary Four
Increments (10%)
Historical Aggregate
166.67
Historical ATAR Estimate (2025)
94.00
After ATAR: Selection Rank
After receiving an ATAR, course-specific selection ranks may include adjustment factors.
Your ATAR
70.00
Does not change
Course A selection rank
75.00
With adjustments
Course B selection rank
72.50
Different adjustments
Prerequisites come first
A strong ATAR does not override essential course prerequisites. SEAS does not exempt from required criteria.
Historical 2025 Aggregate → ATAR
Historical example only. Aggregate-to-ATAR relationships vary by year.
| ATAR | Min Aggregate (2025) |
|---|---|
| 99.95 | 211.42 |
| 99.90 | 208.08 |
| 99.50 | 198.20 |
| 99.00 | 192.10 |
| 98.00 | 181.18 |
| 97.00 | 173.14 |
| 96.00 | 171.36 |
| 95.00 | 169.85 |
| 94.00 | 163.60 |
| 93.00 | 159.72 |
| 92.00 | 158.20 |
| 91.00 | 156.76 |
| 90.00 | 155.19 |
| 85.00 | 146.36 |
| 80.00 | 135.65 |
| 75.00 | 128.29 |
| 70.00 | 120.42 |
| 65.00 | 114.77 |
| 60.00 | 107.03 |
| 55.00 | 101.38 |
| 50.00 | 94.06 |
| 45.00 | 87.54 |
| 40.00 | 80.53 |
| 35.00 | 72.63 |
| 30.00 | 64.07 |
ATAR and study-score relationships vary between cohorts and years. Historical scaling and aggregate examples on this page are provided to explain the system and are not predictions of a future ATAR. Course prerequisites, adjustment factors and selection processes can also change. Confirm current requirements with VTAC, VCAA and the relevant institution.