Free NSW HSC planning tool
Estimate your ATAR.
Plan your next move.
Explore possible results using a transparent estimate informed by five years of published UAC scaling summaries.
No account required. Your estimate appears instantly.
2021–2025Published summaries referenced
60+Supported NSW courses
926NSW senior schools in the directory
FreeNo account required

Clear and practical
Choose your NSW HSC courses and enter the marks you expect.
Adjust individual subjects and see how your estimate responds.
Review contributing units, estimated scaling and your likely range.
Interactive planning tool
Move the sliders to compare a current estimate with a target. Then choose the next action which suits the student.
A focused improvement plan is worth exploring.
For students and parents
Learn the difference between school marks, scaled results, an ATAR and a university selection rank.
Read the ATAR fundamentals →For parents of senior Biology students
Enhance Education gives Year 11 and Year 12 students specialist Biology support. Students receive clearer explanations, structured exam practice and feedback which helps them understand what stronger responses require.

ATAR essentials
Common questions
No. An ATAR is a rank showing your position relative to the relevant school-age population.
Every public calculator produces an estimate. Official ATAR calculations use raw marks and scaling information unavailable to students.
The NSW aggregate uses your best two units of English and best eight remaining eligible units under the current rules.
Yes, Biology is an ATAR course. Its contribution depends on your performance and the scaling process for your cohort.
Ready when you are
Start with a realistic estimate. Then use it to make stronger study and pathway decisions.
Calculate my ATAR