TEAS score calculator: how to estimate your total score from a practice test
Written and reviewed by Brittany Scott, BSN, RN, CCM · 3 min read · Updated November 2026
Short answer
To estimate your TEAS total score, add your correct answers across all four sections and divide by 150, the number of questions on ATI's sample report. Do not average the four section percentages. ATI then equates the raw score for form difficulty, so any calculator, including this method, gives an estimate, not your official score.
How ATI calculates the score
ATI's score report explanation says the raw score, meaning the total number of items you answered correctly, is converted to the total score through equating, which adjusts for differences in difficulty between test forms. The result is reported on a 0% to 100% scale.
The total uses items from all four content areas, and ATI does not give a total score to anyone who does not complete all four. The four section scores are adjusted the same way, and ATI notes they do not add up to the total.
How the sections are weighted
ATI does not publish a section weighting formula, and the total is built from the raw count of correct answers. ATI's sample Individual Performance Profile lists 150 questions: Reading 47, Math 32, Science 47, and English and Language Usage 24.
That works out to about 31% of the total for Reading, 21% for Math, 31% for Science, and 16% for English. In practice a point in Science moves your total almost twice as much as a point in English, because Science has nearly twice as many questions.
Worked example
Say a practice test gives you Reading 38 of 47, Math 26 of 32, Science 33 of 47, and English 20 of 24. Add the correct answers: 38 plus 26 plus 33 plus 20 is 117. Divide by 150 and you get 78.0%.
Now average the four section percentages instead: 80.9%, 81.3%, 70.2% and 83.3% average to 78.9%. The gap comes from English, which is only 24 questions but counts as a full quarter in an average. The 117 out of 150 method matches how ATI builds the total from items.
On ATI's preparedness scale, 78.0% sits exactly at the bottom of the Advanced band, which runs from 78.0% to 90.0%, with Proficient below it from 58.7% to 77.3%. An estimate that close to a boundary could land on either side once equating is applied, so do not treat it as a level you have secured.
Can you estimate from a practice test?
Yes, with limits. A practice test only estimates well if it matches the real exam: the same four sections, a similar question mix, and the same time limits. Third-party tests vary in difficulty, and the equating ATI applies to official forms is not public, so treat the estimate as a range of a few points either way.
The more useful number is often the section result. If Science is your lowest section, it also carries about 31% of the total, so raising it moves the total more than the same gain in English. Check your program's published cutoff, because some programs set a minimum for a section as well as the total.
Sources
ATI Help: How is the ATI TEAS test scored?. Total and content area scores are equated; sub-content area scores are the raw percentage correct
ATI TEAS sample Individual Performance Profile with score explanation (2026, hosted by Cal State LA). Raw score converted to total by equating, 0% to 100% scale, section scores do not add up, all four areas required, 150 questions by section, preparedness level ranges
ATI Help: TEAS Score Report (IPP) and Topics to Review. Report shows the adjusted individual total score, preparedness level and the four content area scores
Common questions
How is the TEAS composite score calculated?
ATI takes your total number of correct answers across all four sections, then converts that raw score to a 0% to 100% total through equating, which adjusts for form difficulty. It is not an average of the four section scores.
Why don't my TEAS section scores add up to my total?
ATI adjusts each section score and the total separately for form difficulty, and says the section scores do not add up to the total. Sections also differ in size, from 24 to 47 questions.
Is a TEAS score calculator accurate?
Only roughly. Counting correct answers out of 150 gives the raw score, but ATI's equating step is not published, so no calculator can reproduce your official score exactly.