These WAM and GPA calculators follow the rules Australian universities publish. Every rule links to the page it comes from, with the date GradeCat opened it. Each tool works right away with no account, and your marks stay in your browser.
Tools
Which tool do I need?
- What is my WAM? Use the WAM Calculator. Pick UNSW, the University of Sydney, the University of Melbourne or Adelaide University, then enter each course's mark and credit points. At UNSW, 78, 91 and 64 over 6 UOC each, 55 over 3 UOC and a CR with no mark over 3 UOC give a WAM of 73.875.
- What is my GPA? Use the University GPA Calculator with UQ, ANU, Adelaide or RMIT. Enter each course's units and grade. At UQ, a 6 and a 4 over 2 units each, a 7 over 1 unit and an X over 1 unit give a GPA of 4.5.
- What is my WAM as a GPA? There is no single formula. UNSW and the University of Sydney say they do not use a GPA. When you apply through UAC, it turns each subject's grade into a 7-point value. Pick UAC admission GPA in the GPA calculator and enter your grades.
- What is my HSC mark? Use the HSC Mark and Band Calculator for NSW. Enter each course's exam mark and assessment mark: 84 and 79 average 81.5, which rounds up to 82, Band 5.
- What grade is my mark? The University Grading Scale in Australia shows the grade a mark gets at each university. A 78 is a DN at UNSW, a DI at Sydney, an H2A at Melbourne and a D at ANU.
- What percentage are my marks? The Grade Calculator adds up marks out of any total: 31 out of 50 is 62%.
WAM or GPA: which does my university use?
A WAM is a weighted average of your marks out of 100. A GPA is a weighted average of grade points, out of 7 at UQ, ANU and Adelaide University and out of 4 at RMIT. Both weight each course by its credit points or units.
- UNSW and the University of Sydney use a WAM and say they do not use a GPA.
- The University of Melbourne uses a WAM. Its assessment policy defines no GPA.
- UQ, ANU and RMIT use a GPA.
- Adelaide University uses both, and truncates each to 2 decimals.
WAM vs GPA in Australia works through both, with Sydney's level weight, each university's mark bands and why there is no single WAM to GPA formula.
Guides
- WAM vs GPA in Australia: what each means and how universities calculate them: formulas, mark bands, worked examples and why you cannot work out your own ATAR.
- How ATAR is calculated: what adds up in NSW, Victoria, Queensland, WA and SA, and how the rank works.
- HSC scaling explained: why NSW marks are scaled, which marks scaling uses, and how the 10 units for the ATAR are picked.
Why there is no ATAR calculator here
The ATAR is a rank, not a mark. It is worked out from scaled marks that students are not given, so you cannot work out your own. UAC's page How your ATAR is calculated explains the NSW rules, and UAC's ATAR Compass and QTAC's ATAR Navigator give estimates. GradeCat has no GPA to ATAR tool either: UAC and QTAC do not publish how a GPA becomes a selection rank.
Tools that work with any marks
Some GradeCat tools work on marks from any country. The Grade Calculator adds up marks out of their totals, the Weighted Grade Calculator combines assessments with their weights, such as an exam worth 50%, and the Final Grade Calculator shows the mark you need in the final exam. Their letter grades follow US scales, so read the percentage they give.
Not covered yet
- Monash, Macquarie and Deakin: their sites refused our reader on 4 November 2026, so their rules are not verified.
- UTS, UWA, Newcastle, Western Sydney, JCU, QUT, Griffith and other universities: their own rules were not opened.
- Honours classes, HSC Extension course bands, and GEMSAS's GPA for graduate-entry medicine.
A tool goes live here only after its rules are checked against the page that sets them. Each result is an estimate, not an official result. See the privacy policy for what this site stores.