How the digital SAT is actually scored
The digital SAT gives two section scores, Reading & Writing and Math, each on a 200–800 scale, summing to a 400–1600 total. Each section runs in two modules, and the test adapts: how you do on the first module decides whether the second module is the harder or easier set. Your scaled score depends on both how many questions you got right and which questions they were.
That is why no single raw-to-scaled table can exactly reproduce an official digital score. The number of correct answers alone genuinely does not contain enough information: two students with the same raw count on different module routes can earn different scaled scores.
Where this estimate comes from
College Board publishes paper versions of its digital practice tests, and those come with an official self-scoring worksheet: count correct answers per section, then look the raw score up in a conversion table that maps it to a lower and upper scaled score. This calculator implements the table from the scoring guide for Practice Test #4 exactly as published: 67 Reading & Writing rows and 55 Math rows, nothing interpolated.
The paper tests are linear rather than adaptive, which is also why they are longer: 66 Reading & Writing questions and 54 Math questions, against 54 and 44 on the adaptive digital test taken in the Bluebook app. If you practiced in Bluebook, the app scores you itself; this page is for the printable tests, or for getting a feel of how raw performance maps to the 1600 scale.
Reading the range honestly
A raw 50 in Reading & Writing converts to 610–630, and a raw 40 in Math to 590–620, for a 1200–1250 total. Treat the whole range as the estimate. Practice-test curves differ slightly from test to test (that is normal equating, not error), so a midpoint carried to single-point precision would be false confidence.
The useful signal is movement between practice tests: going from 1150–1200 to 1250–1300 across a month of practice is real information, regardless of where in each range the true score would have landed.
Answer everything: there is no guessing penalty
The SAT stopped deducting points for wrong answers in 2016. Raw score is purely the count of correct answers, so a blank and a wrong answer cost exactly the same. On the digital test each remaining minute of a section is better spent eliminating one option and guessing than leaving anything unanswered.