Estimate your ATAR based on raw HSC exam marks
Enter your expected external HSC exam marks (0-100) for each subject
Choose up to 12 units (2 units of English required)
Your school's rank helps improve ATAR prediction accuracy
💡 Top schools: Students' internal marks typically align closely with external exam performance
Enter your expected raw external HSC exam marks (0-100)
Select subjects to enter marks
How This Works: Enter your expected raw HSC external exam marks (0-100) for each subject. The calculator applies historical UAC scaling data and selects your best 10 units to estimate your ATAR. School rank adjustments account for typical performance patterns but are optional.
Disclaimer: This calculator provides estimates only and is not affiliated with UAC or NESA. Actual ATAR calculations involve complex scaling and moderation processes. Use this as a guide for planning and motivation.
Understanding how this calculator works
This HSC ATAR Calculator helps NSW students estimate their Australian Tertiary Admission Rank (ATAR) based on their expected raw HSC exam marks. Built with historical UAC scaling data, it provides a realistic estimate of your ATAR outcome.
Input your expected HSC external exam marks (0-100) for each subject you're studying.
Applies historical UAC scaling factors based on subject difficulty and cohort performance.
Automatically selects your best 10 units (2 English + best 8 others) for calculation.
Optional school ranking adjustment accounts for typical performance patterns.
Converts your scaled aggregate to an estimated ATAR with confidence range.
Work backwards to see what marks you need to reach your target ATAR.
Your ATAR: This is the estimated rank showing where you sit relative to your age cohort. An ATAR of 90 means you're in the top 10%.
Range: The confidence range accounts for uncertainty in predictions. Top-ranked schools have tighter ranges due to more consistent performance.
School Adjustment: Optional adjustment based on historical performance patterns. Elite schools typically show +0.8-1.5% boost, while lower-ranked schools may have -0.5-1.2% adjustment.
Subject Breakdown: Shows which subjects contribute to your final ATAR and their scaled marks.
⚠️ This calculator provides estimates only and is not affiliated with UAC, NESA, or any educational institution.
📚 Actual ATAR calculations involve complex moderation and scaling processes that this calculator simplifies for accessibility.
🎯 Use this tool as a guide for planning and motivation, not as a definitive prediction of your final ATAR.
✅ For official ATAR information, consult UAC directly.
Created with ❤️ to help NSW students understand ATAR calculations and set realistic study goals.
Data to be updated with latest scaling factors.
Contact: calcmyatar@gmail.com