GPA Scale Chart and Converter
GPA points
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Enter a percentage or a letter grade to see its GPA points.
Estimate. Your school sets its own bands and bonuses; the charts below show the common ones with their sources. Reference: Common 4.0 scale (checked Oct 2026). Sources and assumptions
US GPA scale chart: percent, letter grade and 4.0 points
| Letter | Percent | 4.0 scale | Honors | AP or IB |
|---|---|---|---|---|
| A | 93 to 100 | 4.0 | 4.5 | 5.0 |
| A- | 90 to 92 | 3.7 | 4.2 | 4.7 |
| B+ | 87 to 89 | 3.3 | 3.8 | 4.3 |
| B | 83 to 86 | 3.0 | 3.5 | 4.0 |
| B- | 80 to 82 | 2.7 | 3.2 | 3.7 |
| C+ | 77 to 79 | 2.3 | 2.8 | 3.3 |
| C | 73 to 76 | 2.0 | 2.5 | 3.0 |
| C- | 70 to 72 | 1.7 | 2.2 | 2.7 |
| D+ | 67 to 69 | 1.3 | 1.8 | 2.3 |
| D | 63 to 66 | 1.0 | 1.5 | 2.0 |
| D- | 60 to 62 | 0.7 | 1.2 | 1.7 |
| F | Below 60 | 0.0 | 0.0 | 0.0 |
Every letter links to its GPA page. Percent bands from the 10 point scale with pluses and minuses; your school may use another, and the full charts below cover the common ones.
What is the highest GPA you can get?
4.0 on an unweighted scale, 4.33 where an A+ GPA earns extra, and up to 5.0 on the common weighted scale (AP, IB and dual enrollment at +1.0). A few districts use 6.0 or 12 point scales. The chart above shows what each letter is worth at every level, a straight A record is a 4.0 GPA unweighted, and the high school GPA calculator shows your weighted and unweighted numbers together.
Look up a GPA: what each value means
Every GPA from 0.0 to 4.0 has its own page with the letter, the percentage, how it compares with the national average and what it takes to raise it, plus one page per letter grade.
How this calculator works
Every GPA scale does the same two things: it turns a grade into points, and it averages the points. The charts below show the common US scales side by side, with the weighted columns most high schools use for honors and AP classes and the percent bands that turn an 88% into a B+. Each table names its source, because the bands are set by states, districts and colleges, not by one national rule. Need the letter for one percentage, such as is a 93 an A? The grading scale chart lists every percentage from 100 to 50 on three scales.
Ready to calculate? Calculate your GPA on this scale, or use the high school calculator for weighted and unweighted at once and the college calculator for credit hours.
Worked example
A report card shows 88% in Chemistry. What is that on the 4.0 scale?
- On the common 10 point scale with pluses and minuses, 87 to 89% is a B+.
- On the common 4.0 scale a B+ is worth 3.30 points.
- With the AP bonus of +1.0 the same grade would count as 4.30 in a weighted GPA.
88% is a B+, or 3.30 on the 4.0 scale.
Questions and answers
What is the 4.0 GPA scale (4.0 grading scale)?
The 4.0 grading scale is the common US GPA scale: A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0. With pluses and minuses, A- = 3.7, B+ = 3.3, B- = 2.7 and so on in steps of 0.3 and 0.4; A+ usually stays at 4.0. Your GPA is the average of your grade points, weighted by credits where your school uses them.
How do I calculate my GPA on a 4.0 scale?
Turn each grade into points on the 4.0 scale (A 4.0, A- 3.7, B+ 3.3, B 3.0 and so on), multiply each by the class's credits if your school uses them, add the results and divide by the total credits or the number of classes. An A, a B+ and a B- in three equal classes give (4.0 + 3.3 + 2.7) / 3 = 3.33. Need a GPA calculator for the 4.0 scale? The GPA calculator does this for every class at once.
What is a 90 on the 4.0 scale?
On the common 10 point scale with pluses and minuses, 90 to 92 is an A-, worth 3.7 grade points; 93 and up is an A, worth 4.0. On a plain 10 point scale 90 is an A and 4.0. The converter above shows the letter and points for any percentage on each scale. On the same scale an 88 is a B+ (3.3), a 91 an A- (3.7), and a 94 or 95 an A (4.0).
Is a 93 a 4.0?
Yes. A 93 is an A on the common 10 point scale with pluses and minuses (where an A runs from 93 to 100), on a 7 point scale and on a plain 10 point scale, and an A is worth 4.0 grade points on the 4.0 scale. A 92 is an A- and drops to 3.7. The grading scale chart lists the letter for every percentage from 100 to 50.
What is the 5.0 GPA scale?
A weighted scale: honors classes add 0.5 and AP, IB or dual enrollment classes add 1.0 to each grade's points, so an A in an AP class counts 5.0. Only the weighted classes reach above 4.0, which is why a weighted GPA of 4.3 can mean a 3.8 unweighted. The 5.0 chart below lists every letter at each level.
How do I convert a GPA from a 5.0 scale to a 4.0 scale?
There is no exact conversion, because the bonus only applies to some classes. The quick estimate divides by 5 and multiplies by 4 (a 4.5 becomes 3.6); the accurate way is to recalculate from your transcript without the bonuses, which the high school GPA calculator does for you when you turn Weighted off.
How do I convert a percentage to GPA?
First turn the percentage into a letter on your school's scale (for example 88% = B+ on the 10 point scale with pluses and minuses), then read the letter's points (B+ = 3.3). A whole year of 88% grades would be a 3.3 GPA. The converter does both steps and shows the scale it used. Going the other way, from GPA to percentage, read the band in the chart: a 3.0 is a B, about 83 to 86% on the 10 point scale with pluses and minuses.
How do I convert a letter grade to GPA?
Read the letter's points off the 4.0 chart: A 4.0, A- 3.7, B+ 3.3, B 3.0, B- 2.7, C+ 2.3, C 2.0, C- 1.7, D+ 1.3, D 1.0, F 0. A whole semester of one letter is that GPA. Mixed grades: add the points (times credits, if used) and divide. Each letter has its own page with the percentages and what it does to your average.
Is a 4.33 scale the same as a 4.0 scale?
Almost. On a 4.33 scale an A+ is worth 4.33 instead of 4.0 and the thirds are 3.67, 3.33 and so on instead of 3.7 and 3.3. A student with many A+ grades can finish above 4.0. Colleges that recalculate GPAs usually cap A+ at 4.0, so the two scales converge in admissions.
What is GPA scale reporting on a college application?
It is the scale your high school uses for the GPA you report, such as 4.0, 5.0 or 100. Applications ask for it so that a 4.3 from a school that reports on a 5.0 scale is not read as a 4.3 out of 4.0. Enter your GPA and its scale exactly as your transcript shows them, and say whether the GPA is weighted or unweighted; do not convert it yourself. If your school does not report a GPA, follow the application's instructions or ask your counselor.
From CurveFox
GPA scale charts: weighted, high school and college
Letters to points on the common scales, with the 5.0 weighted columns, then percent to letter on the common percent bands. Pick the one your school uses; the source is under each chart.
| Letter | Unweighted | Honors (+0.5) | AP, IB or dual enrollment (+1) |
|---|---|---|---|
| A+ | 4.00 | 4.50 | 5.00 |
| A | 4.00 | 4.50 | 5.00 |
| A- | 3.70 | 4.20 | 4.70 |
| B+ | 3.30 | 3.80 | 4.30 |
| B | 3.00 | 3.50 | 4.00 |
| B- | 2.70 | 3.20 | 3.70 |
| C+ | 2.30 | 2.80 | 3.30 |
| C | 2.00 | 2.50 | 3.00 |
| C- | 1.70 | 2.20 | 2.70 |
| D+ | 1.30 | 1.80 | 2.30 |
| D | 1.00 | 1.50 | 2.00 |
| D- | 0.70 | 1.20 | 1.70 |
| F | 0.00 | 0.00 | 0.00 |
P, CR, S, W, I, NC, U: no grade points (not counted in the GPA). Weighted columns use the common bonus rule; a failing grade is never boosted.
| Letter | Unweighted | Honors (+0.5) | AP, IB or dual enrollment (+1) |
|---|---|---|---|
| A+ | 4.33 | 4.83 | 5.33 |
| A | 4.00 | 4.50 | 5.00 |
| A- | 3.67 | 4.17 | 4.67 |
| B+ | 3.33 | 3.83 | 4.33 |
| B | 3.00 | 3.50 | 4.00 |
| B- | 2.67 | 3.17 | 3.67 |
| C+ | 2.33 | 2.83 | 3.33 |
| C | 2.00 | 2.50 | 3.00 |
| C- | 1.67 | 2.17 | 2.67 |
| D+ | 1.33 | 1.83 | 2.33 |
| D | 1.00 | 1.50 | 2.00 |
| D- | 0.67 | 1.17 | 1.67 |
| F | 0.00 | 0.00 | 0.00 |
P, CR, S, W, I, NC, U: no grade points (not counted in the GPA). Weighted columns use the common bonus rule; a failing grade is never boosted.
| Letter | Unweighted | Honors (+0.5) | AP, IB or dual enrollment (+1) |
|---|---|---|---|
| A+ | 4.00 | 4.50 | 5.00 |
| A | 4.00 | 4.50 | 5.00 |
| A- | 3.67 | 4.17 | 4.67 |
| B+ | 3.33 | 3.83 | 4.33 |
| B | 3.00 | 3.50 | 4.00 |
| B- | 2.67 | 3.17 | 3.67 |
| C+ | 2.33 | 2.83 | 3.33 |
| C | 2.00 | 2.50 | 3.00 |
| C- | 1.67 | 2.17 | 2.67 |
| D+ | 1.33 | 1.83 | 2.33 |
| D | 1.00 | 1.50 | 2.00 |
| D- | 0.67 | 1.17 | 1.67 |
| F | 0.00 | 0.00 | 0.00 |
P, CR, S, W, I, NC, U: no grade points (not counted in the GPA). Weighted columns use the common bonus rule; a failing grade is never boosted.
| Letter | Unweighted | Honors (+0.5) | AP, IB or dual enrollment (+1) |
|---|---|---|---|
| A | 4.00 | 4.50 | 5.00 |
| B | 3.00 | 3.50 | 4.00 |
| C | 2.00 | 2.50 | 3.00 |
| D | 1.00 | 1.50 | 2.00 |
| F | 0.00 | 0.00 | 0.00 |
P, CR, S, W, I, NC, U: no grade points (not counted in the GPA). Weighted columns use the common bonus rule; a failing grade is never boosted.
Percent to GPA on each school scale
Every single percentage, with its letter on each scale, is on the grading scale chart.
| Percent | Letter | 4.0 scale |
|---|---|---|
| 90 to 100 | A | 4.0 |
| 80 to 89 | B | 3.0 |
| 70 to 79 | C | 2.0 |
| 60 to 69 | D | 1.0 |
| Below 60 | F | 0.0 |
| Percent | Letter | 4.0 scale |
|---|---|---|
| 93 to 100 | A | 4.0 |
| 90 to 92 | A- | 3.7 |
| 87 to 89 | B+ | 3.3 |
| 83 to 86 | B | 3.0 |
| 80 to 82 | B- | 2.7 |
| 77 to 79 | C+ | 2.3 |
| 73 to 76 | C | 2.0 |
| 70 to 72 | C- | 1.7 |
| 67 to 69 | D+ | 1.3 |
| 63 to 66 | D | 1.0 |
| 60 to 62 | D- | 0.7 |
| Below 60 | F | 0.0 |
| Percent | Letter | 4.0 scale |
|---|---|---|
| 93 to 100 | A | 4.0 |
| 85 to 92 | B | 3.0 |
| 75 to 84 | C | 2.0 |
| 70 to 74 | D | 1.0 |
| Below 70 | F | 0.0 |
Weighting rules
Common weighting (Honors +0.5, AP, IB and dual enrollment +1.0)
Regular +0, Honors +0.5, AP, IB or dual enrollment +1.
Older weighting (Honors +1.0, AP and IB +2.0)
Regular +0, Honors +1, AP or IB +2.
UC admissions GPA (no pluses or minuses, honors +1 capped at 8 points)
Regular +0, UC approved honors, AP, IB or college +1.