Scores
PSAT/NMSQT scores and the National Merit Selection Index
A PSAT/NMSQT® total and a Selection Index measure the same test in different ways. Here is the arithmetic, with examples.
Updated · Official sources
Two numbers, different calculations
The PSAT/NMSQT (Preliminary SAT®/National Merit® Scholarship Qualifying Test) is one exam. If the names are new to you, start with PSAT/NMSQT, PSAT™ 10 and PSAT™ 8/9 explained.
The PSAT/NMSQT reports Reading and Writing and Math scores of 160–760 each. Their sum is the 320–1520 total. The National Merit Selection Index runs from 48–228. SAT section scores instead run from 200–800, with a 400–1600 total. College Board: SAT Suite score ranges.
National Merit uses Selection Index = (2 × Reading and Writing + Math) ÷ 10. Reading and Writing therefore has twice Math's weight in this calculation. College Board and NMSC: fall 2026 student guide.
Consider two invented score reports:
- Reading and Writing 720, Math 680: total 1400, Selection Index 212.
- Reading and Writing 680, Math 720: total 1400, Selection Index 208.
The totals match; the Selection Index values do not. A target expressed only as “a 1400 PSAT/NMSQT total” cannot specify a unique Selection Index.
PSAT/NMSQT or PSAT 10: which counts?
PSAT 10 and PSAT/NMSQT cover the same subject matter and use the same score range. The PSAT/NMSQT is offered in fall; PSAT 10 is offered in spring and does not qualify students for National Merit. College Board: PSAT 10 and PSAT/NMSQT comparison.
For qualifying-year rules, see why PSAT/NMSQT scores are not superscored.
Use the actual section scores on your official report for this arithmetic. Check the official guide for your competition year and educational timeline before judging eligibility.