QLD · Official QTAC Table

OP to ATAR Conversion

Convert your old Queensland OP (1992–2019) to its ATAR-equivalent range — or go the other way

This calculator uses the official QTAC OP to ATAR Conversion Table. QTAC’s own documentation notes there is no possible direct translation between the two systems — OP was a broad band, not a precise score — so results are shown as an ATAR range, not a single number.
Conversion direction tap ▸
OP1OP7OP13OP19OP25
ATAR-Equivalent Range
Select an OP band above
ATAR 0ATAR 99.95
Conversion Detail
Range Lower Bound
Range Upper Bound
Official QTAC OP to ATAR Concordance Table (2019 cohort)
OP BandLowest ATAR AwardedApprox. ATAR Range

Source: QTAC, “OP to ATAR Conversion Table” — the lowest ATAR awarded within each OP band for OPs awarded in 2019, the final year OP was issued. QTAC notes this varied slightly year to year and that no exact translation exists between the two systems. ATARs of 30.00 or below are reported nationally as “30.00 or less” — this is why OP21–25 all show the same floor value.

This calculator provides estimates only based on the official QTAC OP to ATAR Conversion Table for OPs awarded in 2019. QTAC’s own documentation states there is no possible direct translation between OP and ATAR, since the two systems are derived from different data and different statistical methods. This tool is not affiliated with QTAC or the QCAA. For an official comparison, see uac.edu.au.

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OP to ATAR Conversion Calculator 2026 — Official QTAC Concordance Table

Use OP to ATAR Conversion Calculator to convert your old Queensland Overall Position (OP) into its ATAR-equivalent range, using the official table published by QTAC (Queensland Tertiary Admissions Centre). You can also convert in reverse — enter an ATAR to see which OP band it would have fallen into. Built for former Queensland students, mature-age applicants, and anyone comparing historical results against the modern ATAR scale.

What Was the Overall Position (OP)?

The Overall Position (OP) was Queensland’s tertiary entrance ranking system from 1992 to 2019. Unlike the ATAR — a precise percentile from 0.00 to 99.95 — the OP placed students into one of 25 broad bands, from OP1 (highest achievement) to OP25 (lowest), based on a student’s Overall Achievement Indicator combined with performance on the Queensland Core Skills (QCS) Test. From 2020, Queensland adopted the ATAR, bringing it in line with every other Australian state and territory, and QTAC took over ATAR calculation from the QCAA.

Is There an Official OP to ATAR Conversion?

Yes — QTAC publishes an official OP to ATAR Conversion Table, and this calculator uses it directly. However, QTAC’s own documentation is explicit about its limits: “There is no possible direct translation of OP to ATAR because the two are derived from different sets of information and by different statistical methods.” The published table instead shows the lowest ATAR awarded within each OP band for the final OP cohort in 2019 — meaning any given OP corresponds to a range of possible ATARs, not one exact figure. This calculator presents that range honestly, rather than inventing false precision.

Official QTAC OP to ATAR Concordance Table (2019)

OP BandLowest ATAR Awarded (2019)
OP198.85
OP297.30
OP395.50
OP493.40
OP591.15
OP688.75
OP786.25
OP883.50
OP980.70
OP1077.85
OP1175.05
OP1272.15
OP1369.15
OP1466.00
OP1562.55
OP1658.90
OP1755.10
OP1851.20
OP1947.20
OP2041.00
OP21 – OP2530.00 or less

Source: QTAC, “OP to ATAR Conversion Table.” Figures shown are the lowest ATAR awarded within each OP band for OPs issued in 2019 — the final year the OP system operated. QTAC notes this varied slightly year to year based on Year 12 achievement patterns. ATARs of 30.00 or below are reported nationally as “30.00 or less,” which is why OP21 through OP25 cannot be further subdivided.

How to Read the Conversion — Bands, Not Points

Because OP was a banded result, an OP1 doesn’t correspond to one single ATAR — it corresponds to the entire range from the OP1 threshold (98.85) up to the maximum possible ATAR (99.95). Likewise, an OP9 spans from 80.70 up to just below the OP8 threshold of 83.50. This calculator automatically works out that range for you and displays it clearly, rather than picking an arbitrary midpoint that could overstate or understate your actual result.

Who Actually Needs to Convert OP to ATAR in 2026?

Since 2020, all new Queensland Year 12 students receive an ATAR directly from QTAC — this conversion tool is relevant only for historical OP results from 2019 and earlier.

Frequently Asked Questions

Is there an official OP to ATAR conversion table?

Yes. QTAC publishes an official OP to ATAR Conversion Table based on the lowest ATAR awarded within each OP band for the final OP cohort in 2019. QTAC’s own documentation notes there is no possible direct translation between the two systems, so the table is presented as an approximate band-based guide rather than an exact equivalence.

What was the Overall Position (OP) in Queensland?

The Overall Position (OP) was Queensland’s tertiary entrance ranking system from 1992 to 2019. It placed students into one of 25 bands from OP1 (highest) to OP25 (lowest), based on their Overall Achievement Indicator. It was replaced by the ATAR starting with the 2020 Queensland Year 12 cohort.

What ATAR is equivalent to an OP1?

According to the official QTAC concordance table, students awarded an OP1 in 2019 received ATARs ranging from approximately 98.85 up to 99.95. Because OP was a broad band rather than a precise score, any ATAR within that range could correspond to an OP1.

Why do I need to convert my OP to an ATAR?

Students who completed Year 12 in Queensland before 2020 received an OP rather than an ATAR. If you are applying to university years later, comparing results with others, or applying interstate where only ATAR is used, you may need an ATAR-equivalent figure. Since 2020, QTAC calculates the ATAR for all new Queensland applicants directly.

Why does OP21 to OP25 all show the same ATAR?

ATARs of 30.00 or below are reported nationally as “30.00 or less” rather than as an exact figure — this is a standard ATAR reporting convention, not specific to Queensland. Since OP21 through OP25 all fall at or below this reporting floor, QTAC’s table cannot further subdivide them.

Can I get an exact ATAR for my old OP result?

No — QTAC’s own documentation states there is no possible direct translation between OP and ATAR, since the two systems are derived from different data and different statistical methods. The best available guidance is the official range-based concordance table used in this calculator.