🎓 GPA Converter: Convert Between 4.0, 4.3, 5.0, Percentage and CGPA
By Shihab Mia · Updated 2026-07-28
Enter a GPA on the unweighted 4.0 scale, from 0.0 to 4.0.
These are standard approximations built from a common conversion table. Individual schools, colleges and universities set their own grading and weighting policies, so always confirm against your institution's official scale for anything that goes on a transcript or application.
This GPA converter turns a GPA, percentage, letter grade or CGPA into its equivalent on every other common scale at once: the unweighted 4.0 scale, the 4.3 scale (where A+ is worth 4.3), the 5.0 weighted scale used for AP, IB and Honors courses, a 0 to 100 percentage, the standard letter grade, and the India 10-point CGPA scale. Pick the scale your number is already on, type the value, and the results grid updates immediately using a standard conversion table. Because grading policy varies by school, board and country, treat every converted figure as a close standard approximation, not an official transcript value.
What is the GPA Converter?
A GPA (grade point average) is only meaningful next to the scale it was measured on, and that is exactly where GPA conversion gets confusing. A 3.7 on an unweighted 4.0 scale represents roughly the same academic performance as an 88 percent, a B+, or a CGPA of about 9.26 in India, but none of those numbers look alike, so a student moving between systems, an admissions officer reading a foreign transcript, or a parent comparing report cards needs a shared reference point. This converter uses percentage as that shared reference point: whatever scale you enter, the tool first works out the equivalent percentage, then reads every other scale off that same percentage.
The 4.0 and 4.3 scales look almost identical but differ at exactly one place. Both treat a B+ as 3.3, a C as 2.0 and an F as 0.0, following the widely used band: 4.0 is A+ (97 to 100 percent), 3.7 is A (93 to 96), 3.3 is A- (90 to 92), 3.0 is B+ (87 to 89), 2.7 is B (83 to 86), 2.3 is B- (80 to 82), 2.0 is C+ (77 to 79), 1.7 is C (73 to 76), 1.3 is C- (70 to 72), 1.0 is D+ (67 to 69), 0.7 is D (65 to 66), and 0.0 is F (below 65). The only place the two scales split is at the very top: the 4.3 scale gives an A+ its own extra credit, worth 4.3, while the 4.0 scale caps out at 4.0 regardless of how far into the 97 to 100 band a student scores. Everything below A stays identical between the two scales.
The 5.0 scale exists for a different reason: weighting. High schools that offer AP, IB or Honors courses often add a full point on top of the standard 4.0-scale grade to reward the extra difficulty, so an A (worth 4.0 unweighted) becomes a 5.0 in a weighted AP class, while a regular A stays at 4.0. This converter applies that common plus-one convention in both directions, but it cannot know which of a student's actual courses were weighted, so a transcript GPA that mixes weighted and unweighted courses will not perfectly reverse through a single plus-one calculation. Treat the 5.0-scale figure here as "what this one grade looks like if it came from a weighted course," not as a substitute for a school's own weighted GPA calculation across a full course list.
The India 10-point CGPA scale converts to percentage using the formula percentage = CGPA times 9.5, which comes from the Central Board of Secondary Education (CBSE) and is the figure most Indian universities, employers and visa officers recognize as the standard shortcut. It is precise enough for informal comparison but, like every conversion on this page, it is an approximation: some Indian universities publish their own multiplier (Anna University uses 10, for example), and grade point bands still smooth over the fact that a whole percentage range maps to one CGPA value. Whenever a conversion will appear on an official application, scholarship form or admissions decision, confirm the exact rule your specific institution uses rather than relying on any general-purpose calculator, including this one.
When to use it
- Converting a high school GPA to a percentage or letter grade for a college application form that asks for a specific format.
- Checking what an Indian CGPA looks like as a US-style 4.0 GPA before applying to a university or graduate program abroad.
- Working out whether a weighted 5.0-scale GPA from an AP or IB transcript is equivalent to a strong unweighted 4.0 GPA.
- Comparing report cards or transcripts between two schools that grade on different scales, such as 4.0 versus 4.3.
How to use the GPA Converter
- Choose the scale your current value is on: 4.0 GPA, 4.3 GPA, 5.0 weighted GPA, percentage, letter grade, or India 10-point CGPA.
- Type your number into the value field, or pick a letter grade from the dropdown if that is your source scale.
- Read the equivalent value on every other scale from the results grid, which updates as you type.
- Use the copy button to grab a plain-text summary of all six equivalents for pasting into an email, form or notes.
Formula & method
Worked examples
A student has an unweighted GPA of 3.4 on the 4.0 scale and wants their percentage, letter grade and India CGPA equivalent.
- 3.4 falls between the 3.3 (90 to 92, A-) and 3.7 (93 to 96, A) anchor points.
- Interpolating between those points gives a percentage of about 90.75%.
- A percentage of 90.75% falls in the 90 to 92 band, so the letter grade is A-.
- India CGPA = 90.75 / 9.5 = 9.55.
- 5.0 weighted scale = 3.4 + 1.0 = 4.40.
Result: 3.4 (4.0 scale) is about 90.75%, an A-, a 9.55 CGPA, and 4.40 on the weighted 5.0 scale.
A student's transcript from India shows a CGPA of 8.2 and they need the US 4.0-scale equivalent for a university application.
- Percentage = CGPA x 9.5 = 8.2 x 9.5 = 77.9%.
- 77.9% falls in the 77 to 79 band, so the letter grade is C+.
- On the 4.0 scale, 77.9% interpolates to roughly 2.09.
- On the 4.3 scale the value is the same, 2.09, since this band is below the A+ split.
- 5.0 weighted scale = 2.09 + 1.0 = 3.09.
Result: A CGPA of 8.2 converts to about 77.9%, a C+, and roughly 2.09 on the 4.0 scale.
Standard GPA, percentage and letter grade conversion chart
| 4.0 scale | 4.3 scale | Percentage range | Letter grade |
|---|---|---|---|
| 4.0 | 4.3 | 97 to 100 | A+ |
| 3.7 | 3.7 | 93 to 96 | A |
| 3.3 | 3.3 | 90 to 92 | A- |
| 3.0 | 3.0 | 87 to 89 | B+ |
| 2.7 | 2.7 | 83 to 86 | B |
| 2.3 | 2.3 | 80 to 82 | B- |
| 2.0 | 2.0 | 77 to 79 | C+ |
| 1.7 | 1.7 | 73 to 76 | C |
| 1.3 | 1.3 | 70 to 72 | C- |
| 1.0 | 1.0 | 67 to 69 | D+ |
| 0.7 | 0.7 | 65 to 66 | D |
| 0.0 | 0.0 | below 65 | F |
India 10-point CGPA to percentage (CBSE 9.5 multiplier)
| CGPA | Percentage (CGPA x 9.5) |
|---|---|
| 10.0 | 95.0% |
| 9.0 | 85.5% |
| 8.0 | 76.0% |
| 7.0 | 66.5% |
| 6.0 | 57.0% |
| 5.0 | 47.5% |
Common mistakes to avoid
- Assuming 4.0 and 4.3 scales are always interchangeable. They match everywhere except the top grade. A 4.0 GPA on a 4.3-scale transcript is an A, not an A+, so treating the two scales as identical understates a straight-A+ student and overstates everyone else by comparison.
- Adding a full point to every course on a 5.0 scale. The plus-one weighting convention applies only to courses a school actually designates as weighted (AP, IB, Honors). Applying it to a whole GPA that mixes weighted and unweighted courses will overstate the result.
- Using one CGPA multiplier for every Indian institution. The 9.5 figure is the CBSE convention and the most common shortcut, but some universities publish a different official multiplier or a piecewise formula. Always check your specific institution before quoting a converted percentage on a form.
- Treating a converted percentage as an exact transcript value. Grade bands are stepped in real grading policies (a whole percentage range maps to one grade point), so any calculator, including this one, produces a standard approximation rather than the precise number your registrar would issue.
Glossary
- GPA (grade point average)
- A single number summarizing academic performance, most commonly on a 4.0 scale in the United States.
- Weighted GPA
- A GPA that adds extra credit (commonly one full point) for harder courses such as AP, IB or Honors classes.
- Unweighted GPA
- A GPA calculated the same way for every course regardless of difficulty, typically capped at 4.0.
- CGPA (cumulative grade point average)
- The term used in India and several other countries for an overall grade point average, usually on a 10-point scale.
- Letter grade
- A grade expressed as a letter (A, B, C, D, F, often with a + or -) that corresponds to a specific GPA value and percentage range.
- Grading scale
- The specific numeric range and rules a school or institution uses to translate raw scores into GPA and letter grades.
Frequently asked questions
How do I convert my GPA to a percentage?
Find where your GPA falls in the standard 4.0-scale conversion table (for example 3.7 corresponds to roughly 93 to 96 percent). This converter interpolates between the table's reference points so it also handles GPAs that fall between whole grade values.
What is the difference between a 4.0 and a 4.3 GPA scale?
The two scales are identical for every grade except the very top one. On a 4.3 scale, an A+ is worth 4.3 instead of capping at 4.0, giving top students a small amount of extra credit that the 4.0 scale does not.
How do you convert CGPA to percentage in India?
The most widely used method, from CBSE, is percentage = CGPA x 9.5. So a CGPA of 8.5 converts to 8.5 x 9.5 = 80.75 percent. Some universities use a different official multiplier, so check your institution's own policy for anything formal.
How does a weighted 5.0 GPA scale work?
Many US high schools add one full point to the standard 4.0-scale grade for AP, IB or Honors courses, so a course-level A (4.0 unweighted) becomes a 5.0 when weighted. It rewards students for taking harder classes, not just for earning higher grades.
Is a 3.5 GPA good?
On the standard unweighted 4.0 scale, a 3.5 sits between an A- and a B+ and is generally considered a strong, competitive GPA for most college applications, though "good" always depends on the specific school or program's typical admitted range.
Can I convert a letter grade directly to GPA?
Yes. Each letter grade corresponds to a fixed GPA value on the standard scale (A+ = 4.0 or 4.3, A = 3.7, A- = 3.3, and so on down to F = 0.0). Select "Letter grade" as the source scale in this converter to see all the other equivalents at once.