Please note that all correlations between leveling system are very rough.
| Grade | Literably | DRA | Rigby PM | AR / ATOS | Lexile | STAR SS |
| Kindergarten | A | A, 1, 2 | 1 | 0-21 | ||
| Kindergarten | B | A, 1, 2 | 2 | 22-49 | ||
| Kindergarten | C | 3 | 3-4 | 50-68 | ||
| Kindergarten | D | 4 | 5-6 | 1.0-2.0 | 190-530 | 69-73 |
| Grade 1 | E | 6-8 | 7-8 | 1.0-2.0 | 190-530 | 74-92 |
| Grade 1 | F | 10 | 9-10 | 1.0-2.0 | 190-530 | 93-105 |
| Grade 1 | G | 12 | 11-12 | 1.0-2.0 | 190-530 | 106-137 |
| Grade 1 | H | 14 | 13-14 | 1.0-2.0 | 190-530 | 138-153 |
| Grade 1 | I | 16 | 15-16 | 1.0-2.0 | 190-530 | 154-171 |
| Grade 1 | J | 18 | 17-18 | 1.0-2.0 | 190-530 | 172-206 |
| Grade 2 | K | 20 | 19-20 | 2.0-3.0 | 420-560 | 207-257 |
| Grade 2 | L | 24 | 21 | 2.0-3.0 | 420-560 | 258-317 |
| Grade 2 | M | 28 | 22 | 2.0-3.0 | 420-560 | 318-355 |
| Grade 3 | N | 30 | 23 | 2.6-3.6 | 520-820 | 356-389 |
| Grade 3 | O | 34 | 24 | 2.6-3.6 | 520-820 | 390-428 |
| Grade 3 | P | 38 | 25 | 2.6-3.6 | 520-820 | 429-455 |
| Grade 4 | Q | 26 | 3.0-4.5 | 740-940 | 456-483 | |
| Grade 4 | R | 27 | 3.0-4.5 | 740-940 | 484-521 | |
| Grade 4 | S | 40 | 28 | 3.0-4.5 | 740-940 | 522-552 |
| Grade 5 | T | 40 | 29 | 3.4-5.4 | 830-1010 | 553-586 |
| Grade 5 | U | 50 | 30 | 3.4-5.4 | 830-1010 | 587-633 |
| Grade 5 | V | 3.4-5.4 | 830-1010 | 634-671 | ||
| Grade 6 | W | 4.0-6.1 | 925-1070 | 672-709 | ||
| Grade 6 | X | 60 | 4.0-6.1 | 925-1070 | 710-748 | |
| Grade 6 | Y | 4.0-7.0 | 925-1120 | 749-799 | ||
| Grade 7 | Z | 70, 80 | 4.3-8.0 | 970-1185 | 800+ |
Sources:
http://www.heinemann.com/fountasandpinnell/pdfs/instruc_g-l_eq_chart_purplesg.pdf
http://assets.pearsonschool.com/asset_mgr/current/20139/DRA2_Technical_Manual_2012.pdf
https://lexile.com/educators/measuring-growth-with-lexile/lexile-measures-grade-equivalents/
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