WACE ATAR Calculator
WACE ATAR Calculator 2026: Calculate & Predict Your WA ATAR
Planning your university pathway in Western Australia requires a clear understanding of how your Western Australian Certificate of Education (WACE) course marks translate into an Australian Tertiary Admission Rank (ATAR). Whether you are estimating your school-assessed coursework, preparing for external examinations, or calculating the impact of subject bonuses, using an accurate WACE ATAR calculator gives you the clarity needed to set achievable academic targets.
Our interactive WACE ATAR calculator follows the rules published by the Tertiary Institutions Service Centre (TISC) and the School Curriculum and Standards Authority (SCSA) to estimate your Tertiary Entrance Aggregate (TEA) and state percentile rank.
Important: Your official ATAR is calculated by UAC (Universities Admissions Centre) after your HSC results are released. Any calculator, including ours, gives an estimate only.
How to Use WACE Calculator
Select courses
Choose up to six Year 12 WACE ATAR courses from the dropdown menus.
Enter marks
Input your estimated scaled score (out of 100) for each course.
Automatic bonus calculation
The calculator detects eligible bonus subjects (Mathematics Methods ATAR, Mathematics Specialist ATAR, or a LOTE ATAR course) and applies the 10% TISC bonus.
View results
Review your top four scaled scores, your total Tertiary Entrance Aggregate (TEA), and your estimated WACE ATAR.
What Is a WACE ATAR and How Is It Calculated?
The Australian Tertiary Admission Rank (ATAR) is a percentile rank ranging from 0.00 to 99.95 (in 0.05 increments). It reports your academic standing relative to the total Year 12 school-leaving age population in Western Australia for your graduating year cohort.
For example, an ATAR of 85.00 indicates that you performed as well as or better than 85% of the total Year 12 age population in Western Australia.
SCSA vs. TISC: Who Does What?
- School Curriculum and Standards Authority (SCSA): Oversees the Year 11 and Year 12 curriculum, conducts statistical moderation on school marks, administers external WACE examinations, and issues your WACE certificate and Statement of Results.
- Tertiary Institutions Service Centre (TISC): Responsible for university admissions in WA. TISC calculates your ATAR. It takes SCSA’s moderated combined marks, scales them to account for competition across subjects, applies subject bonuses, builds your Tertiary Entrance Aggregate (TEA), and converts that aggregate into an ATAR.
Step-by-Step: How Your WACE Marks Turn into an ATAR
Converting classroom achievements into a university entrance rank follows four steps governed by SCSA and TISC.
- 1
Combined Mark Formation 50/50 Rule
For every Year 12 ATAR course, SCSA generates a Combined Mark (out of 100) using equal 50% contributions:
50%School-assessed mark
Coursework and mock exam marks adjusted by SCSA through statistical moderation, so school assessments across different high schools are directly comparable.
50%WACE external examination mark
The mark achieved in the statewide end-of-year WACE examination.
Combined Mark = (0.50 × Moderated School Mark) + (0.50 × WACE Exam Mark) - 2
TISC Subject Scaling
Because student performance and cohort competition vary between courses (for example, Mathematics Specialist ATAR vs. Psychology ATAR), TISC scales Combined Marks so that a scaled score of 60 in one course represents the same standard of overall academic achievement as a scaled score of 60 in any other course.
Scaled 60
Mathematics Specialist=Scaled 60
Psychology=Scaled 60
Any other course - 3
Calculating the Tertiary Entrance Aggregate (TEA)
TISC calculates your Tertiary Entrance Aggregate (TEA) by adding together your best four scaled scores plus any eligible subject bonuses.
Official TISC Calculation Rules
- Best four scaled scores: Your top four eligible course scores count 100% towards your base aggregate (maximum base score of 400.0).
- 10% TISC subject bonus: TISC adds 10% of your scaled score to your TEA for the courses below.
Mathematics Methods ATAR+10%10% of your scaled scoreMathematics Specialist ATAR+10%10% of your scaled scoreLOTE ATAR+10%Languages Other Than English: 10% of your best LOTE scaled score onlyBonus exception ruleYou receive the 10% bonus for Mathematics Methods, Mathematics Specialist and LOTE even if those courses are not among your best four scaled scores.
Mathematics course combination restrictionsMathematics Applications ATAR cannot be counted together with Mathematics Methods ATAR or Mathematics Specialist ATAR. Methods and Specialist can be counted together. If you complete both Applications and a higher maths course, check the TISC Guide for how your scores are treated.
400.0Maximum base score (best four)+30.0Maximum from the three bonuses430.0Maximum theoretical TEABecause bonuses apply on top of your primary four subjects, the maximum possible TEA is 430.0.
TEA = Scaled 1 + Scaled 2 + Scaled 3 + Scaled 4 + 0.10 × (best LOTE) + 0.10 × (Methods) + 0.10 × (Specialist)Are the bonuses changing?TISC’s Board proposed a change to the TEA calculation in 2024, shown on TISC’s ATAR page as a change for 2028. In 2026 the Board postponed it until further notice, so the rules above apply to students finishing Year 12 in 2026. Check the TISC ATAR page for the latest rules before relying on bonus points in your planning.
- 4
Converting TEA to WACE ATAR
TISC ranks all Western Australian Year 12 students by their calculated TEA and maps each aggregate score to a percentile rank using its annual conversion curve.
Rank by TEAAll WA Year 12 students→Percentile rankAnnual conversion curve→Your WACE ATARIssued by TISC
Worked Examples: Calculating WACE ATAR and TEA
Scaled scores and ATAR conversions below are illustrative estimates based on historical TISC statistical distributions.
Example 1: Standard WACE Profile (85+ ATAR Target)
| WACE ATAR Course | Combined Mark (0–100) | Scaled Score Estimate | Aggregate Contribution |
| Human Biology ATAR | 68 | 66.5 | Counted in top 4 (100%) |
| English ATAR | 66 | 65.0 | Counted in top 4 (100%) |
| Psychology ATAR | 65 | 63.0 | Counted in top 4 (100%) |
| Modern History ATAR | 64 | 62.5 | Counted in top 4 (100%) |
| Mathematics Applications ATAR | 60 | 58.0 | Excluded (5th subject) |
Aggregate calculation:
- Best four scaled scores: 66.5 + 65.0 + 63.0 + 62.5 = 257.0
- Subject bonuses: 0.0
- Total TEA: 257.0 (out of 400.0)
Estimated result: A TEA of 257.0 maps to an ATAR of approximately 86.70 on TISC’s 2025 table.
Example 2: High-Achiever Profile with Mathematics Bonuses (95+ ATAR Target)
| WACE ATAR Course | Combined Mark (0–100) | Scaled Score Estimate | Aggregate Contribution |
| Mathematics Specialist ATAR | 72 | 81.0 | Top 4 + 10% bonus (+8.1) |
| Mathematics Methods ATAR | 74 | 78.5 | Top 4 + 10% bonus (+7.85) |
| Chemistry ATAR | 75 | 77.0 | Top 4 |
| Physics ATAR | 71 | 73.5 | Top 4 |
| Literature ATAR | 70 | 71.0 | Excluded from top 4 (5th subject) |
Aggregate calculation:
- Best four scaled scores: 81.0 + 78.5 + 77.0 + 73.5 = 310.0
- Mathematics bonuses: (0.10 × 81.0) + (0.10 × 78.5) = 8.1 + 7.85 = 15.95
- Total TEA: 310.0 + 15.95 = 325.95 (out of 430.0)
Estimated result: A TEA of 325.95 maps to an ATAR of approximately 97.95 on TISC’s 2025 table.
TISC TEA to WACE ATAR Historical Benchmarks
Disclaimer: TISC’s 2025 TEA/ATAR summary table (minimum TEA for each ATAR). The real conversion changes every year; TISC publishes the new table in December.
| Tertiary Entrance Aggregate (TEA) | Estimated WACE ATAR Range | Performance Tier |
|---|---|---|
| 348.1+ | 99.00 – 99.95 | Top 1% in Western Australia |
| 295.3 – 348.0 | 95.00 – 98.95 | Top 5% in Western Australia |
| 269.6 – 295.2 | 90.00 – 94.95 | Top 10% in Western Australia |
| 237.9 – 269.5 | 80.00 – 89.95 | Top 20% in Western Australia |
| 215.7 – 237.8 | 70.00 – 79.95 | Top 30% in Western Australia |
| 197.2 – 215.6 | 60.00 – 69.95 | Top 40% in Western Australia |
WACE ATAR vs. Selection Rank: University Adjustment Schemes
Your unadjusted ATAR reflects pure academic performance and scaling. However, Western Australian universities apply Selection Rank adjustments for eligible applicants. Schemes and eligibility lists change each year, so always confirm details on the university’s own website.
Curtin University (StepUp to Curtin): Eligible applicants, such as those from an eligible school or those experiencing financial hardship, can receive a Selection Rank higher than their ATAR. If your ATAR is 70.00 or above, you receive an additional 5 points (capped at 99.95). Applicants with an ATAR from 60.00 up to [confirm cutoff: 64.95 or 69.95] have their Selection Rank raised to 70.00. Curtin’s own pages state this cutoff differently, so confirm the current range on Curtin’s StepUp page. Eligibility is usually assessed automatically through TISC.
The University of Western Australia (Broadway UWA): Provides an automatic ATAR adjustment for students who complete Year 12 at an eligible school (for example, schools with an ICSEA score at or below the WA median, regional schools, or Aspire schools), allowing entry into target courses with a reduced ATAR threshold. Check UWA’s current eligibility list and thresholds.
Edith Cowan University (ECU Access): Offers selection rank adjustments for eligible equity backgrounds, regional locations, or specific secondary school cohorts. Check ECU’s current criteria.