The short answer
Louisiana uses a statewide scale of A = 90–100, B = 80–89, C = 70–79, D = 60–69, F = below 60 — a 10-point scale with no plus or minus grades. It applies to all LEAs, grades K-12 where letter grades are used; also TOPS GPA.
Verify with your district: the official site blocked direct access during our research, so these values come from search-engine snippets of the cited official page.
The official Louisiana grading scale
| Letter | Percent range | Points wide | GPA points |
|---|---|---|---|
| A | 90–100 | 11 | not set per letter in our source |
| B | 80–89 | 10 | not set per letter in our source |
| C | 70–79 | 10 | not set per letter in our source |
| D | 60–69 | 10 | not set per letter in our source |
| F | below 60 | — | not set per letter in our source |
Applies to: all LEAs, grades K-12 where letter grades are used; also TOPS GPA.
Louisiana switched to this 10-point scale in 2024–25 under Act 428 of 2024 (HB 424) and BESE rule LAC 28:CXV.2302. It replaced a 93/85/75/67 scale, so the same percent can now earn a higher letter than it did before — see the comparison table. The scale applies across school systems wherever letter grades are used, and it is also the scale behind the TOPS GPA.
Same score, different letter: Louisiana vs. the plus/minus scale
Many teachers, websites and calculators assume the plus/minus scale (A 93+, A− 90–92, B+ 87–89 …). Here is how sample scores land on Louisiana's scale instead, and on the scale it replaced:
| Score | Louisiana letter | Plus/minus letter | Previous Louisiana scale |
|---|---|---|---|
| 97% | A | A+ | A |
| 93% | A | A | A |
| 91% | A | A− | B |
| 89% | B | B+ | B |
| 86% | B | B | B |
| 84% | B | B | C |
| 80% | B | B− | C |
| 78% | C | C+ | C |
| 75% | C | C | C |
| 72% | C | C− | D |
| 70% | C | C− | D |
| 68% | D | D+ | D |
| 65% | D | D | F |
| 61% | D | D− | F |
| 59% | F | F | F |
The base letter matches the plus/minus scale for all 15 sample scores, because both use the same 90/80/70/60 cut-offs. What Louisiana's scale removes is the plus and minus: a 91 is a plain A here but an A− (3.7 points) on the plus/minus scale, and an 80 and an 89 are both a B instead of a B− (2.7) and a B+ (3.3). Where a school maps whole letters to whole points, scores of 90–92 gain 0.3 points and scores of 87–89 lose 0.3 compared with plus/minus grading. Compared with the previous 93/85/75/67 scale, 90–92 moved from B to A, 80–84 moved from C to B, 70–74 moved from D to C, and 60–66 moved from F to D — every change raised the letter.
What the state's documents say
Act 428 of 2024 (HB 424) and BESE rule LAC 28:CXV.2302: 10-point scale from 2024-25, replacing the 93/85/75/67 seven-point scale. Official pages refused or blocked connections; confirmed via search-indexed content (also https://state-rules.com/louisiana/lac/CXV.2302/).
Source: legis.la.gov. Verification: taken from search-engine-indexed text of the cited page because the official site blocked direct access — verify with your district.
Turning a Louisiana letter into GPA points
Our source does not give a point value for each letter on this scale. Many schools use A 4, B 3, C 2, D 1, F 0 for a 10-point scale, but check your transcript or student handbook before calculating, especially for weighted courses.
Enter your grades in the high school GPA calculator (type the letter, not the percent, so the state scale is respected), compare scales in the grading scale converter, or see what a GPA means on the GPA scale. State facts beyond grading are on the Louisiana school facts page.
Frequently asked questions
What is the grading scale in Louisiana?
Does Louisiana use plus and minus grades?
Who does the Louisiana grading scale apply to?
Sources & method
- Louisiana scale: https://legis.la.gov/legis/BillInfo.aspx?i=246114 (search-indexed copy).
- Plus/minus comparison: the common US scale (A 93+, A− 90–92, B+ 87–89 …) used across this site. Sample-score letters are computed from the published ranges.
Checked October 2026. Grading rules change — if your district's handbook differs, the handbook wins. Spotted an error? Tell us via the about page.