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HSC ATAR Calculator — Estimate your ATAR from your HSC marks.

Turn your HSC marks into an estimated ATAR. Built on UAC's 2025 scaling, with every HSC subject and the English rule built in. No signup, instant results. Prefer the NSW ATAR Calculator? →

Using UAC Feb 2026 scaling data · 60,432-student 2025 cohort
Total units: 0 / 10
English units: 0 / 2

Need at least 10 units including 2 of English. All calculations happen in your browser — nothing is saved.

About this NSW ATAR calculator

This calculator estimates your NSW HSC ATAR using UAC's Preliminary Report on the Scaling of the 2025 HSC — the most recent official scaling data available. It covers all 50+ NSW HSC courses, applies the mandatory English rule (2 units of English required), and automatically selects your best 10 units of scaled marks to form your aggregate. For the technical detail on how it works, see our methodology page or the deep-dive on how NSW ATAR is calculated.

Curious which subjects scale up and which scale down? It's not about subject "difficulty" — scaling reflects the academic strength of the cohort taking each subject. Mathematics Extension 2 students typically also perform well in their other HSC subjects, which is why a top-10% Extension 2 student receives a scaled mark of 48.3/50, while a top-10% English Standard student receives 31.5/50. Read our full breakdown of the best-scaling HSC subjects in 2025 and how to choose subjects strategically without sacrificing performance.

Once you've got your ATAR estimate, the next question is always the same: what can I study with this? The university matching section above shows NSW universities grouped by course type with their indicative ATAR cutoffs. Your ATAR is a baseline — adjustment factors (subject bonus points, regional bonus, EAS), pathway programs, and combined degrees can shift what's available to you. For specific course requirements, read our guides on ATAR for Medicine in Australia, ATAR for Law, and 2025 NSW university cutoffs by course.

Your real ATAR is calculated and released by UAC in mid-December. This estimate is built to be as close as possible — typically within ±1.5 ATAR points — but it can't be literally exact because scaling depends on the actual cohort sitting the HSC this year, which doesn't exist until results day. Use this for planning, university research, and motivation, not as the final word. For more on how the calculation works year to year, read our explainer on how accurate ATAR calculators really are.

NSW ATAR — common questions

How is the ATAR calculated in NSW?

You get a result in each subject. UAC scales each result against the state. Your best results are added into a aggregate out of 500. That total is ranked against every student. Your place in that line becomes your ATAR. The ATAR runs from 0 to 99.95.

Do I need English for a NSW ATAR?

Yes. English is compulsory. At least 2 units of English must sit in your best 10 units. It can be Standard, Advanced, EAL, or English Studies.

Why is my ATAR lower than my marks?

Your ATAR is a rank, not a mark. It shows where you placed against everyone else. Marks show what you scored. The two are not the same. Your marks are also scaled before ranking. So a high average can still give a lower ATAR. This is normal and happens to most students.

How accurate is this calculator before results day?

It uses the real method and the latest scaling data. Most estimates land within a few ATAR points. It cannot be exact yet. This year's scaling is not set until results come out. Use it as a guide, not a promise.

Which subjects scale up the most in NSW?

Maths and science scale best in NSW. Extension 2 Maths is the top one. Then come Physics, Chemistry and Extension 1 Maths. Languages scale well too. A subject scales up when its students are strong across all subjects. But scaling only helps if you do well in that subject.

Does picking high-scaling subjects guarantee a high ATAR?

No. This is the biggest myth about the ATAR. Scaling only helps if you score well. A high mark in a subject you love beats a low mark in a 'high-scaling' one. Pick subjects you can do well in.

What's a good ATAR?

There is no single good number. It depends on the course you want. The middle ATAR is near 70. Above 80 puts you in the top fifth. Above 90 puts you in the top tenth. A good ATAR is one that gets you in.

Can I get into uni with a low ATAR?

Yes. Many courses take ATARs in the 60s and 70s. Bonus points can lift you higher. There are also paths that skip the ATAR. These include TAFE, diplomas, bridging courses and portfolios. A low ATAR is one door, not the only one.

How many units do I need for a NSW ATAR?

Your ATAR uses your best 10 units. Most subjects are 2 units. So that is about five subjects. You need at least 10 units to get an ATAR.

What are units in the HSC?

HSC subjects come in units. A normal subject is 2 units. Extension subjects are 1 unit each. Your best 10 units of scaled marks count towards your ATAR.

How do bonus points and adjustment factors work?

Bonus points do not change your ATAR. They change your selection rank for a course. You might earn them for your area, your school, or hardship. They can lift your effective rank by 5 to 10 points. Each university sets its own scheme.

What is the highest ATAR? Why not 100?

The top ATAR is 99.95, not 100. The ATAR is a rank in steps of 0.05. To score 100 you would need to beat everyone, including yourself. So 99.95 is the top. It means you are in the top 0.05%.

Do Extension subjects help my ATAR?

Yes. Extension subjects are 1 unit each. They can scale very high. Extension 2 Maths is the top scaler in the state. They are a good way to lift a strong ATAR.

What's the difference between my HSC mark and my ATAR?

Your HSC mark is a score out of 100 in each subject. Your ATAR is one rank for all of them. The mark is what you got. The ATAR is where you placed.

What is scaling and why does it happen?

Scaling makes subjects fair to compare. Each subject has a different group of students. UAC looks at how that group does across all their subjects. A strong group scales the subject up. A weaker group scales it down. It is about the group, not how hard the subject feels.

Why do different ATAR calculators give different numbers?

Each calculator models scaling in its own way. The exact scaling data is not fully public. So small gaps between tools are normal. Treat every estimate as a guide. Your real ATAR comes only on results day.

Should I enter my predicted or real marks?

Either works in this tool. Before results day, use your best honest guess. Base it on your recent tasks and trials. Do not enter your dream score. The estimate is only as good as the marks you put in.

Does dropping or failing a subject hurt my ATAR?

Only your best subjects count, so dropping one is often fine. You just need enough subjects left. A failed subject can count as a low or zero score. It hurts most when it is one of your counted subjects.

Is my ATAR the same across Australia?

Yes. The ATAR is national. An 85 in one state equals an 85 in another. You can use it to apply anywhere in Australia. You can also use it years later if you take a break.

Can my ATAR change after I receive it?

No. Your ATAR is set once your results are final. It will not go up or down later. You can ask for a check of your marks. The rank itself stays fixed for that year.

When do NSW ATAR results come out?

UAC releases NSW ATARs in mid-December. You get yours a few days after your HSC results. The exact date is shared in advance.

Where do I get my real NSW ATAR?

Your real ATAR comes from UAC. You view it online with your UAC login. Your school and the UAC website show you how to log in.

Why is my friend’s ATAR higher with similar marks?

Subject mix and scaling explain most of the gap. Your friend may take subjects that scaled higher. Or they placed higher within their groups. Near the top, a small mark gap can mean a bigger rank gap. Focus on your own results.

Does this calculator save my marks?

No. All the maths runs in your browser. Nothing is sent to a server. Close the tab and your marks are gone. We cannot see them, store them, or share them.

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