Published undergraduate grading scales of 100 large US colleges, 2026

The published undergraduate grading scale of the 100 largest US colleges and universities by undergraduate enrolment, read directly from each institution's own registrar or catalog page in September 2026 and re-checked row by row against its source on 26 September 2026. For each institution it records the letter grades offered, whether an A+ or D- exists, the plus/minus system, the failing letter, the maximum scale value, the grade-point value of every letter (as published and rounded to two decimals), and whether the institution publishes the percentage at which an A begins: 89 of the 100 do not. Every row links to the page it was read from, and unitid joins the data to IPEDS. Files: college-grading-scales-2026.csv (one row per institution, 100 rows); college-grading-scales-2026-grade-points.csv (one row per institution and letter grade, 898 rows covering 96 institutions); college-grading-scales-2026.json (full records); README.md (data dictionary, method and the v1.1 corrections); CITATION.cff; datapackage.json. Findings and full method: https://calculateyourgrade.com/college-grading-scales-study/