DAT Score Converter

The ADA replaced the DAT's 1-30 reporting scale with a 3-digit 200-600 scale effective March 1, 2025. The change is to the reporting scale only — it does not make the exam harder or easier, and it does not change what you need to know. It does mean that scores from before and after the switch cannot be compared directly without converting one of them.

It is the ADA’s own published concordance, but concordance tables are approximate by design. The old scale had 30 steps and the new one has 41, so the mapping is not one-to-one: several old scores map to the same new score at the bottom of the range. Treat a converted score as "approximately equivalent", which is the language the ADA itself uses.

No, and this catches people out. Each reported score has its own column in the concordance because each has its own distribution. An old 20 converts to 420 in Biology but 430 in Perceptual Ability, so you have to convert each line of an old report separately rather than applying one rule to all of them.

Depends which score it refers to. An old Academic Average of 20 is approximately 420 on the new scale. Most published school data and most advice still quotes the old scale, so converting the target rather than your own score is usually the more useful direction.

Yes, and this tool does it — but with a caveat. The mapping is many-to-one in places, so a new score can correspond to more than one old score. The reverse conversion returns the closest old-scale equivalent and tells you when the match is not exact.