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Best 10 units
The estimate uses the best two English units plus the best eight remaining units entered.
Free student resource
Free NSW ATAR Calculator 2026
Enter your expected HSC subjects and marks to get an indicative NSW ATAR estimate.
NSW HSC resource
Estimate your ATAR from your HSC marks and subjects.
Use this free NSW ATAR calculator to explore how your expected or actual HSC course marks may translate into an indicative ATAR. Choose your subjects, enter your marks and compare historical scaling patterns before you plan your final HSC study priorities.
The calculator uses historical NSW HSC scaling data generated from the UAC 2025 scaling report. It is designed for planning and learning—not as an official UAC result or a guarantee of your final ATAR.
Historical scaling
Compare subject curves and see how marks have scaled across percentiles.
Free to use
No account or email is required to calculate an indicative estimate.
Your NSW HSC subjects
Build your subject mix.
Choose from the most common HSC subjects, then enter your marks.
Understand your estimate
How NSW HSC marks become an ATAR estimate.
Your HSC mark and your ATAR are two different steps. Here is the useful version — with your own subjects plotted when you calculate.
1 · Your HSC mark
Rank matters. So does your exam.
For most HSC courses, your reported mark combines your aligned exam mark and your moderated school assessment mark equally.
The simple formula
(85 assessment + 80 exam) ÷ 2
= 82.5 HSC mark
A simplified first-place example
Assessment rank
1st
You finish first internally
Cohort exam result
85
Highest exam mark at school
Your exam mark
80
This result stays yours
Final HSC mark
82.5
The two halves averaged
This is a simplified example. NESA moderates the whole school assessment distribution while preserving the school’s rank order — it does not simply swap every student’s mark one-for-one.
2 · Scaling explorer
How NSW HSC subject scaling changes the estimate.
Scaling compares course candidatures, but it is not a fixed bonus or penalty. The strongest strategy is still to choose suitable subjects and earn the highest marks you can.
Your subjects · historical data
Calculate to unlock your chart
Add your subjects and marks above. We will plot their historical scaling curves and show where each result sits.
Historical illustration based on UAC 2025 NSW HSC scaling data. UAC recalculates scaling each year and does not report individual scaled marks.
September HSC Masterclasses
Your ATAR estimate is not the finish line.
Turn the marks you entered into a plan for the final HSC weeks. Spend a focused day with expert teachers building the exam technique, practice and confidence needed to lift your result.
Exam-focused teaching
Target the decisions that earn marks in the final exam.
Guided practice
Work through subject-specific questions and response frameworks.
A clear final plan
Leave knowing what to revise and how to use the remaining weeks.
Explore September Masterclasses
Find your subject, date and campus.
September → HSC
Live teaching, real practice and direct support before the final exams.
Before you use the estimate
Common NSW ATAR calculator questions.
What is this ATAR calculator based on?
This calculator uses historical NSW HSC subject scaling data generated from the UAC 2025 NSW HSC scaling report and an aggregate-to-ATAR lookup table. It provides an indicative estimate, not an official UAC result.
How many units count towards an ATAR?
The estimate uses 10 units: the best two units of English plus the best eight remaining units entered in the calculator.
Is this an official UAC ATAR calculator?
No. It is an educational estimate from InspirationED. UAC calculates the official ATAR using its current annual scaling and admissions data.
Can I use expected HSC marks?
Yes. Enter expected or actual HSC course marks to explore an indicative ATAR estimate and historical scaling position.
Want to turn your estimate into a practical exam plan? Explore our September HSC Masterclasses or read more about current HSC workshops.