ATAR Calculator
Estimate your ATAR from scaled scores for SACE (South Australia) or WACE (Western Australia), using the published 2025 tables.
Read this first: this is an estimate, not your official ATAR. SATAC and TISC do not publish per-subject scaling tables, so no calculator can turn raw marks into scaled scores. Enter the scaled scores from your results or trial exams. The tool builds your aggregate (SACE out of 90, WACE TEA out of 430) and maps it to an ATAR through the published 2025 aggregate to ATAR tables. The 2026 tables are published each December and will differ.
Enter your Stage 2 scaled scores, each out of 20. Your aggregate is your best four subjects at full value plus half of your fifth best, out of 90.
Worked example: scaled scores of 18, 17, 16, 15 and 14 give an aggregate of 18 + 17 + 16 + 15 + 7 = 73.00, which sat near an ATAR of about 86 in the 2025 table.
Enter your Year 12 scaled scores, each out of 100. Tick LOTE, Methods or Specialist where it applies: TISC adds 10% of each of those scores to your best four, even when the course is not in your best four.
Worked example: best four scores of 75, 72, 70 and 68 give a TEA of 285 before bonuses. In the 2025 TISC table a TEA of 269.6 gave an ATAR of 90.00 and 295.3 gave 95.00, so 285 sat between the two.
How the estimate works, and its limits
An ATAR is a rank, not a mark. It says what share of the school-leaving-age population you sit above. Both states work in two steps: scale each subject against its cohort, then rank the aggregate against the whole age group. The first step, scaling, is where the guesswork lives for every online calculator. SATAC scales with the Equal Achievement Principle and TISC with Average Marks Scaling, and neither publishes the per-subject tables that would let a calculator reproduce it. So this tool does the honest half: it takes scaled scores you already have and applies the published 2025 aggregate to ATAR tables, with straight-line interpolation between the published rows.
The anchors are real published figures. For SACE, SATAC’s 2025 table maps an aggregate of 80.00 to an ATAR of 93.65, 76.45 to 90.00, and 89.30 to 99.95. For WACE, TISC’s 2025 table maps a TEA of 269.6 to 90.00, 348.1 to 99.00, and 405.5 to 99.95. Between those rows the tool interpolates, and it says so on the result. A score near a boundary can move by a few tenths of an ATAR point when the 2026 table lands, so use the result to plan, not to decide.
Do not pick subjects by scaling
Scaling rewards strong performance in any subject, and the scaling of a subject changes with each year’s cohort. Picking a subject only because it scaled up last year is a poor bet. TISC and SATAC both say the same thing in their own guides.
Adjustment factors are separate
Universities add adjustment factors (bonus points) for things like regional schooling, disadvantage and subject bonuses. Those change your selection rank for a course, not your ATAR. This tool estimates the ATAR only.
Frequently Asked Questions
Related Tools
Gold Calculator (AU)
Value your gold by weight and karat at the live AUD price.
Unit Converter
Convert length, weight, volume, temperature and more.
Date Calculator
Add or subtract days from a date and find the gap between two dates.
Countdown Timer
Count down to exam day, results day or any date you pick.
Check Out Other Popular Tools
Calcolo Stipendio Netto 2026 — Dal Lordo al Netto con Nuovo Cuneo Fiscale
Calcola lo stipendio netto mensile e annuale dal lordo (RAL). Aggiornato con la Legge di Bilancio 2025/2026, 3 scaglioni IRPEF, nuovo taglio cuneo e detrazioni.
Grease Trap Size Calculator
Calculate the required grease trap size (GPM) for your commercial kitchen. Uses PDI-G101 sizing logic based on sink dimensions and drainage load.
Printable Graph Paper PDF Generator — Free Grid, 5mm & Isometric Paper
Free printable graph paper PDF generator online. Customize 5mm grid, 1/4 inch, 3D isometric, engineering, and dot grid paper. Download or print vector PDFs directly.
Was this tool helpful?
Comments
Loading comments...