Latest official UAC scaling data: 2025

HSC ATAR Calculator for 2026 Planning

Estimate your 2026 HSC ATAR from your HSC marks, with the latest official UAC scaling data (2025).

Your courses and HSC marks

At least 10 units, including English. Marks out of 100, or out of 50 for 1-unit courses.

EnglishRequiredYour best 2 units of English always count.

Est. scaled
Estimated scaled mark not available yet
Your other coursesIncluding English Extension 1 and 2. Your best 8 units count.

Est. scaled
Estimated scaled mark not available yet

Est. scaled
Estimated scaled mark not available yet

Est. scaled
Estimated scaled mark not available yet

Est. scaled
Estimated scaled mark not available yet

Add marks for at least 10 units, including your English course, to calculate.

Every mark you type is placed in its course with UAC's 2025 figures, then your best 2 units of English and your best 8 other units are added up the way UAC does it, and converted with UAC's 2025 aggregate and ATAR figures.

This is an estimate for planning, not a prediction. UAC never releases scaled marks, calculates every ATAR from raw marks and works out scaling afresh each year, so treat the range as a guide. ATARs are released on Wednesday 16 December 2026 from 9am.

Scaling from UAC's official Report on the Scaling of the 2025 NSW HSC, the latest available · checked November 2026, re-stamped when UAC publishes its new report each December.How we verify

2026 results

When the real numbers arrive

  • HSC results

    Wednesday 16 December 2026 from 6am

    From NESA, through Students Online.

  • ATAR

    Wednesday 16 December 2026 from 9am

    From UAC, which sends an SMS or email with a link to log in.

  • You can change your university course preferences until 11:59pm on 18 December 2026.
  • The first offers to Year 12 students are made on 23 December 2026 (December Round 2).

Dates from NESA and UAC. HSC results day 2026

The method

How the estimate works

UAC doesn't release scaled marks, and it says its scaling tables aren't a mark-to-scaled conversion. So the calculator estimates, using only figures UAC publishes for 2025.

  1. 1Your mark places you in the courseFor most courses with 40 or more students, UAC publishes where HSC marks fell in 2025 (Table A3's percentiles, plus Table A4's bands where available). Your mark gives your position, such as the 70th percentile. Smaller courses are placed using UAC's course average and spread instead, with a wider range.
  2. 2The same position gives a scaled markScaling never changes the order of students inside a course, so the calculator reads the scaled mark at your position from UAC's scaled-mark figures (Tables A3 and A5).
  3. 3Your best 10 units make the aggregateYour best 2 units of English, then your best 8 other units, add up to an aggregate out of 500, with UAC's rules for the extension courses.
  4. 4The aggregate becomes an ATARUAC publishes the lowest aggregate for selected ATARs and the ATAR at selected aggregates (Tables A9 and 3.2). The calculator reads between those 2025 points.

Why a range, not one number

NESA rounds and aligns HSC marks, so one HSC mark covers a band of students, and those students have different scaled marks. UAC's own example: in 2025 a History Extension mark of 47 covered students from the 87th to the 96th percentile. Each course's range allows for the rounding of your mark: half a mark either side, or a band one standard deviation wide for courses with fewer than 40 students. Students with the same HSC mark can sit further apart than that, so your ATAR can land outside the range even on 2025 figures. The ATAR range adds how far UAC's aggregate-to-ATAR figures moved from 2021 to 2025, but not how 2026 scaling will differ.

2025 UAC dataHow HSC courses scaled in 2025See where each course's marks and scaled marks fell.The full rulesHow the HSC ATAR is calculatedUnits, English, the extension rules and eligibility.

2025 UAC data

What an aggregate was worth

Each year UAC publishes the lowest aggregate, out of 500, that matched selected ATARs, and the ATAR at selected aggregates. The calculator reads between the 2025 points, and the earlier years set how wide its range is. Three examples:

  • ATAR 90.00

    370.7/ 500

    The lowest aggregate for this ATAR in 2025. From 2021 to 2024 it was between 368.9 and 370.0.

  • ATAR 80.00

    313.8/ 500

    The lowest aggregate for this ATAR in 2025. From 2021 to 2024 it was between 310.9 and 313.5.

  • ATAR 70.00

    262.0/ 500

    The lowest aggregate for this ATAR in 2025. From 2021 to 2024 it was between 259.5 and 263.8.

The full tables are in UAC's Report on the Scaling of the 2025 NSW HSC (Tables A9 and 3.2). The figures shift each year with the share of NSW and ACT students eligible for an ATAR.

Frequently asked questions

How does the HSC ATAR calculator work?
It estimates your ATAR in four steps, from figures UAC publishes for 2025. First, each HSC mark is placed within its course, using the percentiles of HSC marks UAC publishes for most courses with 40 or more students. Smaller courses are placed using UAC's course average and spread instead, with a wider range. Second, the scaled mark at the same position is read from UAC's scaled-mark figures. These two steps are estimates, because UAC scales raw marks, which aren't released. Third, your best 2 units of English and your best 8 other units are added into an aggregate out of 500, following UAC's rules. Fourth, the aggregate is converted to an ATAR with UAC's published aggregate-to-ATAR figures.
Why does it show a range instead of one number?
Because UAC says an HSC mark doesn't map to a single scaled mark. NESA rounds and aligns HSC marks, so students with the same HSC mark can have different raw marks and therefore different scaled marks: in 2025, a History Extension mark of 47 covered students from the 87th to the 96th percentile. The range allows for the rounding of each HSC mark: half a mark either side, or a band one standard deviation wide for courses with fewer than 40 students. Students with the same HSC mark can sit further apart than that, so even on 2025 figures your ATAR can land outside the range. The ATAR range also allows for how far UAC's aggregate-to-ATAR conversion moved between 2021 and 2025, but not for how 2026 scaling will differ.
How accurate is the estimate?
It is an estimate for planning, not a prediction. UAC calculates the real ATAR from raw marks that aren't released, and works out scaling afresh every year, so the 2026 figures will differ from 2025's. Even on 2025 figures your ATAR can fall outside the range: students with the same HSC mark can sit further apart than it allows, and the calculator reads between the points UAC publishes. Estimates are least certain for courses with fewer than 40 students and for Health and Movement Science, which has no scaling data of its own yet. UAC didn't publish the 2025 figures the calculator needs for a handful of courses, mostly very small ones, so it can't estimate them (the course search names them). They can still count towards your real ATAR.
Which courses count towards my ATAR?
Your best 2 units of English, then your best 8 remaining units, from at least 10 units of ATAR courses. Since 2025, UAC no longer splits ATAR courses into Category A and B, so VET examination courses, English Studies and Mathematics Standard 1 count like any other course, provided you sit their HSC exams. You also need courses from at least four subjects and at least three courses of 2 units or more.
How do the Mathematics and English extension courses count?
Mathematics Extension 1 counts as 1 unit with Mathematics Advanced. If you also complete Extension 2, Extension 1 counts as 2 units, Extension 2 counts as 2 units, and Mathematics Advanced isn't counted. English Extension 1 counts as 1 unit and needs English Advanced; English Extension 2 counts as 1 unit and needs Extension 1. Your English courses with the highest scaled marks fill your 2 units of English first. The calculator applies these rules for you.
Does it include Health and Movement Science?
Yes. Health and Movement Science replaces PDHPE and is examined for the first time in 2026, so UAC has no scaling data for it yet. The calculator estimates it with PDHPE's 2025 scaling (its last year) and labels it, so treat that course's estimate as rougher than the rest.
Can I see my real scaled marks?
No. UAC doesn't report scaled marks to students. Your ATAR Advice Notice shows your ATAR and how many units of each course counted towards it, which is why any HSC calculator can only estimate scaled marks.
When do I get my real ATAR?
UAC releases ATARs on Wednesday 16 December 2026 from 9am. HSC results come out on Wednesday 16 December 2026 from 6am, through NESA's Students Online.

Estimating a different state?

Built for New South Wales students. Scaling, rules and conversion figures from UAC, re-stamped when UAC publishes its new scaling report each year.

Never study alone.Study with a Polarbear.

Essay marking, practice questions, mock exams, study rooms and a tutor for VCE, HSC and QCE.

Try for Free

Scaling by course

See how your courses scaled

Pick a course to see where its HSC marks and scaled marks fell in UAC's 2025 report.