QCE ATAR Calculator 2026 – Estimate Your ATAR Score
This advanced QCE ATAR calculator helps Queensland students in Years 11–12, parents, and tutors estimate an ATAR score based on Queensland Certificate of Education (QCE) subject results. Your official ATAR is calculated and issued by QTAC (Queensland Tertiary Admissions Centre) based on your QCE results as certified by QCAA (Queensland Curriculum and Assessment Authority). This tool provides an educational estimate only, as calculation methodologies and scaling factors can change annually, particularly for 2026 as final procedures are confirmed by QTAC.
Quick ATAR Predictor
Ideal for early scenario planning. Select your average band and subject count.
Score Normalization
Subject results can be entered as percentages (0–100) or direct scores (0–20). This calculator normalizes all inputs to the 0–20 scale:
Where:
- = Normalized subject score (0–20)
- = Input percentage (0–100)
Scaled Score Adjustment
Each subject score can be adjusted for estimated scaling effects:
Where:
- = Scaled subject score
- = Scaling adjustment (varies by subject strength and cohort)
Aggregate Calculation
The aggregate is the sum of scaled scores from your counted subjects (typically best Stage 2 subjects):
Where:
- = Total aggregate score
- = Set of counted subjects (usually best 5+ Stage 2 subjects)
ATAR Estimation
The aggregate is converted to an estimated ATAR percentile using an approximation function:
Assessment + Exam Score Estimation
When using school assessment and exam inputs, the tool estimates a subject result:
How to Use This SACE ATAR Calculator
Follow these steps to estimate your ATAR for 2026:
- 1
Select your calculation mode: Choose Subject Score Mode if you have predicted grades or results, Assessment + Exam Estimator if you want to estimate from component scores, or Quick Predictor for a fast range estimate.
- 2
Enter your subject data: For Subject Score Mode, input subject names, select Stage 2, enter results (0–20 or as percentages), and choose scaling adjustments. Check the box for subjects that should count toward your aggregate.
- 3
Review which subjects count: Typically, your best Stage 2 subjects count. Stage 1 subjects generally do not contribute but can be entered for planning.
- 4
Calculate: Click the Calculate button to generate your estimated ATAR, aggregate breakdown, subject contributions, and sensitivity analysis.
- 5
Analyze results: Review the ATAR range, aggregate score, and which subjects contribute most. The sensitivity analysis shows how improving specific subjects impacts your estimated ATAR.
- 6
Save or compare scenarios: Save different subject combinations or predicted scores to compare strategies and plan improvements.
- 7
Export or share: Download results as CSV, print a summary, or copy a shareable link with your inputs.
Pro Tip: Use the sensitivity analysis feature to identify which subject provides the highest ATAR return for every 1% improvement in your score.
How SACE Results Estimate ATAR
The ATAR (Australian Tertiary Admission Rank) is a percentile ranking from 0.00 to 99.95 that indicates your position relative to all students in your age cohort nationally. In South Australia, SATAC calculates your ATAR based on your SACE (South Australian Certificate of Education) results.
SACE Subject Scores
SACE subjects are graded on a scale, with Stage 2 subjects (typically completed in Year 12) contributing to your ATAR calculation. Subject results are often expressed as grades (A to E) or numerical scores (commonly 0–20 or percentages). Your performance is assessed through school-based assessments and external examinations, with specific weightings that vary by subject.
What is Scaling?
Scaling adjusts subject results to account for differences in subject difficulty and the academic strength of each subject's cohort. If students taking a particular subject also perform strongly in their other subjects, this indicates a strong cohort, and that subject may receive positive scaling. Scaling ensures fairness across different subject choices and is recalculated annually by SATAC based on current cohort performance.
How Aggregates Work
Your aggregate is typically the sum of your best Stage 2 subject scores (usually 5 or more subjects, depending on completion requirements). SATAC uses specific rules to determine which subjects count and how they combine. The aggregate is then converted to an ATAR percentile using SATAC's conversion process.
Which Subjects Count Most?
Your highest-performing Stage 2 subjects typically count toward your aggregate. While all completed Stage 2 subjects can contribute, the focus is on your best results. Stage 1 subjects (typically Year 11) generally do not count directly toward your ATAR but form the foundation for Stage 2 success.