National Merit Selection Index Calculator
Enter your PSAT/NMSQT section scores to get your Selection Index and see whether it meets your state's Class of 2027 Semifinalist cutoff and the national Commended cutoff (208).
How the Selection Index Works
Selection Index = (Reading & Writing × 2 + Math) ÷ 10. Reading & Writing is weighted double, which is why two students with the same 1460 total can land on different Selection Indexes. The scale runs 48–228; a perfect 760/760 is 228.
Example: 720 RW / 730 M
(720 × 2 + 730) ÷ 10 = (1440 + 730) ÷ 10 = 217. Qualifies in every state with a cutoff of 217 or lower (Colorado, Georgia, North Carolina and below).
Example: 760 RW / 700 M
(1520 + 700) ÷ 10 = 222. Same 1460 total as a 700/760 split, which would only be a 216. Reading & Writing strength pays off.
Safe in every state
A 224 cleared every Class of 2027 cutoff (223 max) and every cutoff in the last five years except the Class of 2026 peak of 225 in MA, NJ and DC.
Where to Find Your Section Scores
Log in to your College Board account, open your PSAT/NMSQT score report, and use the two section scores (Reading and Writing; Math), not the total. Scores from the October test are released in November. Only the October test of your junior year counts for National Merit.
Next: check the full state cutoff table, read the National Merit timeline, or compare PSAT prep programs if you are still a sophomore.
Selection Index FAQ
How do you calculate the National Merit Selection Index?
Selection Index = (Reading & Writing section score × 2 + Math section score) ÷ 10. Section scores run 160–760, so the Selection Index runs 48–228. Reading & Writing counts double.
What Selection Index do I need for National Merit?
For the Class of 2027: at least 208 for Commended Student, and your state's Semifinalist cutoff (208–223) for Semifinalist. A 224 or higher qualifies in every state.
Is the Selection Index the same as my total PSAT score?
No. Total score (320–1520) adds the two sections equally. Selection Index weights Reading & Writing double, so two students with the same total score can have different Selection Indexes. A 1460 could be a 216 (700 RW / 760 M) or a 222 (760 RW / 700 M).
Does the Selection Index round?
It never needs to. Section scores are multiples of 10, so (RW × 2 + M) is always divisible by 10 and the result is a whole number.