The short answer
Find your letter, then read its points: on the common plus/minus scale, 93–100% = A = 4.0, 90–92% = A− = 3.7, 87–89% = B+ = 3.3, 83–86% = B = 3.0, 80–82% = B− = 2.7. So 89% is a B+ worth 3.3 on the 4.0 scale (3.8 in an honors class, 4.3 in AP or IB with the common +0.5/+1.0 weighting). On a 10-point scale with no plus or minus, 89% is a B worth 3.0. The bonuses and cut-offs are school-specific: your report card’s scale wins.A percent becomes a GPA in two steps: the percent decides the letter, and the letter decides the points. The converter does both, then shows what the same grade counts in an honors or AP class, so you can read any class grade as a GPA number.
How to convert a percent to GPA
Find the letter band your percent falls in, then use that letter’s point value. On the common plus/minus scale used across this site, the bands and points are fixed steps:
- 93–100% → A → 4.0 (97 and up is an A+, still 4.0 on a 4.0 scale)
- 90–92% → A− → 3.7
- 87–89% → B+ → 3.3
- 83–86% → B → 3.0
- 80–82% → B− → 2.7
- 77–79% → C+ → 2.3, and so on down to D− (60–62%, 0.7)
- below 60% → F → 0
Worked example: a class grade of 89% sits in the 87–89 band, so it is a B+ worth 3.3. One more point moves it into the 90–92 band (A−, 3.7). That 0.4-point jump from a single percentage point is the reason grades just under a cut-off cost the most on a GPA.
The converter does not average or interpolate. A single class grade always earns a step value, which is what appears on a transcript. If you want the reverse direction, from a GPA back to a percent, use the GPA scale and GPA to percentage converter.
Percent to GPA chart, 60–100%
This chart converts every whole percent from 60 to 100 on all three common US scales. The honors and AP columns use the common +0.5 and +1.0 bonuses on the plus/minus scale.
Table: Percent to letter grade and GPA points (plus/minus, 10-point and 7-point scales)
| Percent | Plus/minus letter | 4.0 points | Honors (+0.5) | AP/IB (+1.0) | 10-point scale | 7-point scale |
|---|---|---|---|---|---|---|
| 100% | A+ | 4.0 | 4.5 | 5.0 | A (4.0) | A (4.0) |
| 99% | A+ | 4.0 | 4.5 | 5.0 | A (4.0) | A (4.0) |
| 98% | A+ | 4.0 | 4.5 | 5.0 | A (4.0) | A (4.0) |
| 97% | A+ | 4.0 | 4.5 | 5.0 | A (4.0) | A (4.0) |
| 96% | A | 4.0 | 4.5 | 5.0 | A (4.0) | A (4.0) |
| 95% | A | 4.0 | 4.5 | 5.0 | A (4.0) | A (4.0) |
| 94% | A | 4.0 | 4.5 | 5.0 | A (4.0) | A (4.0) |
| 93% | A | 4.0 | 4.5 | 5.0 | A (4.0) | A (4.0) |
| 92% | A− | 3.7 | 4.2 | 4.7 | A (4.0) | B (3.0) |
| 91% | A− | 3.7 | 4.2 | 4.7 | A (4.0) | B (3.0) |
| 90% | A− | 3.7 | 4.2 | 4.7 | A (4.0) | B (3.0) |
| 89% | B+ | 3.3 | 3.8 | 4.3 | B (3.0) | B (3.0) |
| 88% | B+ | 3.3 | 3.8 | 4.3 | B (3.0) | B (3.0) |
| 87% | B+ | 3.3 | 3.8 | 4.3 | B (3.0) | B (3.0) |
| 86% | B | 3.0 | 3.5 | 4.0 | B (3.0) | B (3.0) |
| 85% | B | 3.0 | 3.5 | 4.0 | B (3.0) | B (3.0) |
| 84% | B | 3.0 | 3.5 | 4.0 | B (3.0) | C (2.0) |
| 83% | B | 3.0 | 3.5 | 4.0 | B (3.0) | C (2.0) |
| 82% | B− | 2.7 | 3.2 | 3.7 | B (3.0) | C (2.0) |
| 81% | B− | 2.7 | 3.2 | 3.7 | B (3.0) | C (2.0) |
| 80% | B− | 2.7 | 3.2 | 3.7 | B (3.0) | C (2.0) |
| 79% | C+ | 2.3 | 2.8 | 3.3 | C (2.0) | C (2.0) |
| 78% | C+ | 2.3 | 2.8 | 3.3 | C (2.0) | C (2.0) |
| 77% | C+ | 2.3 | 2.8 | 3.3 | C (2.0) | C (2.0) |
| 76% | C | 2.0 | 2.5 | 3.0 | C (2.0) | D (1.0) |
| 75% | C | 2.0 | 2.5 | 3.0 | C (2.0) | D (1.0) |
| 74% | C | 2.0 | 2.5 | 3.0 | C (2.0) | D (1.0) |
| 73% | C | 2.0 | 2.5 | 3.0 | C (2.0) | D (1.0) |
| 72% | C− | 1.7 | 2.2 | 2.7 | C (2.0) | D (1.0) |
| 71% | C− | 1.7 | 2.2 | 2.7 | C (2.0) | D (1.0) |
| 70% | C− | 1.7 | 2.2 | 2.7 | C (2.0) | D (1.0) |
| 69% | D+ | 1.3 | 1.8 | 2.3 | D (1.0) | F (0.0) |
| 68% | D+ | 1.3 | 1.8 | 2.3 | D (1.0) | F (0.0) |
| 67% | D+ | 1.3 | 1.8 | 2.3 | D (1.0) | F (0.0) |
| 66% | D | 1.0 | 1.5 | 2.0 | D (1.0) | F (0.0) |
| 65% | D | 1.0 | 1.5 | 2.0 | D (1.0) | F (0.0) |
| 64% | D | 1.0 | 1.5 | 2.0 | D (1.0) | F (0.0) |
| 63% | D | 1.0 | 1.5 | 2.0 | D (1.0) | F (0.0) |
| 62% | D− | 0.7 | 1.2 | 1.7 | D (1.0) | F (0.0) |
| 61% | D− | 0.7 | 1.2 | 1.7 | D (1.0) | F (0.0) |
| 60% | D− | 0.7 | 1.2 | 1.7 | D (1.0) | F (0.0) |
| below 60% | F | 0.0 | 0.0 | 0.0 | F (0.0) | F (0.0) |
An F earns no weighting bonus at most schools, so it stays at 0 in every column. Want the letter bands only, or your own state’s scale? The grading scale converter shows percent to letter on each common scale and by state.
Common grades as a GPA: 89, 86, 84, 82 and 79
These are the percents students look up most, because each sits on or near a letter boundary. Every value below uses the plus/minus scale unless noted.
89% as a GPA: B+, worth 3.3. It is the top of the B+ band, so a single point more (90%) makes it an A− worth 3.7. On a 10-point scale, 89% is a B worth 3.0, and the next point would jump it to a 4.0 A, a full grade point for one percentage point.
86% as a GPA: B, worth 3.0. The B+ band starts at 87%, so 86% is one point short of 3.3. On the 10-point and 7-point scales it is also a B worth 3.0.
84% as a GPA: B, worth 3.0 on the plus/minus and 10-point scales. On a 7-point scale, where a B needs 85%, it falls to a C worth 2.0. If your school uses a 7-point scale, 84% versus 85% is a full grade point.
82% as a GPA: B−, worth 2.7 on the 4.0 scale. In an honors class it counts 3.2 and in AP 3.7. On a 10-point scale it is a plain B, 3.0.
79% as a GPA: C+, worth 2.3. One point up, 80% is a B− worth 2.7. On a 10-point scale 79% is a C (2.0), and the 80% line moves it to a B (3.0).
The pattern repeats down the chart: the last percent before a cut-off (69, 79, 89) is where a small gain moves the GPA most. When you have one assignment or test left, the final grade calculator tells you the score you need to cross that line.
Which grading scale does your school use?
The same percent can be worth 3.0, 3.3 or 4.0 depending on the scale, so pick the one printed on your report card or in your student handbook. The three options in the converter cover most US middle and high schools:
| Scale | A starts at | B starts at | Plus/minus? | 89% is |
|---|---|---|---|---|
| Plus/minus | 93% (A− at 90%) | 83% (B+ at 87%) | Yes | B+ (3.3) |
| 10-point | 90% | 80% | No | B (3.0) |
| 7-point | 93% | 85% | No | B (3.0) |
Some states set the scale for every public school. North Carolina, for example, requires one 10-point scale for all high school courses, with an A at 90–100 worth 4.0, 4.5 in honors and 5.0 in AP, IB or dual-enrollment college-transfer courses (State Board Policy GRAD-009, as published by Orange County Schools). If your scale is not listed, find your letter on your school’s chart, then read the points for that letter from the table above.
Honors and AP: what a percent counts in a weighted GPA
A weighted GPA adds a bonus for harder classes. The site’s default, and the most common convention, is +0.5 for honors and +1.0 for AP, IB or dual enrollment, so an 89% (B+, 3.3) counts 3.8 in honors and 4.3 in AP. A 93% counts 4.0, 4.5 and 5.0.
Treat these numbers as typical rather than universal. Bonuses are set by districts or states, and colleges often redo the math their own way. The University of California, for example, ignores pluses and minuses (A = 4, B = 3) and adds one point only for approved honors-level courses taken in 10th and 11th grade (UC GPA requirement). Under that method, 89% and 85% are both just a B.
To see how much weighting adds across your whole schedule, use the weighted to unweighted GPA converter. For what each kind of GPA is for, read weighted vs unweighted GPA explained.
When the converter’s answer can be wrong
| Symptom | Likely cause | Fix |
|---|---|---|
| Your report card shows a different letter for the same percent | Your school uses another scale | Switch the scale, or read your school’s chart |
| Your GPA is higher than the converter suggests | Teacher rounded .5 up, or the school uses a 4.33 scale | Tick the rounding box; check if A+ is worth 4.33 |
| Your weighted points differ | Your school’s honors or AP bonus is not +0.5/+1.0 | Use your handbook’s bonus values |
| Percent average and GPA disagree | GPA converts each class before averaging | Convert class by class |
That last row trips up many students. A GPA is the credit-weighted average of each class’s points, not a conversion of your overall percent average. To build the real number from several classes, enter them in the high school GPA calculator, or add a new term to an existing GPA with the cumulative GPA calculator. For a single test, the test score calculator turns points into a percent first.
Frequently asked questions
What is 89% as a GPA?
What is 84% as a GPA?
Is 86% a 3.0 or a 3.3 GPA?
How do I convert my overall percentage average to a GPA?
Does rounding change my GPA?
Is 90% a 4.0?
Sources & method
- Grade points: common US plus/minus scale (A 93–100 = 4.0, A− 90–92 = 3.7, B+ 87–89 = 3.3 …), plus 10-point and 7-point scales, the same values used across this site’s calculators.
- Weighting: +0.5 honors and +1.0 AP/IB/dual enrollment is a common convention; North Carolina sets exactly these bonuses for all public high schools under State Board Policy GRAD-009 (Orange County Schools summary; NCDPI).
- College recalculation example without plus/minus: University of California GPA requirement.
Formulas checked October 2026. Spotted an error? Tell us via the about page.