How to Convert Percentage to GPA (4.0 Scale)
How to Convert Percentage to GPA (4.0 Scale)
Divide your percentage by 25 to get a rough 4.0 GPA, or use the standard chart below for the number your school actually reports. A 90% converts to a 3.7, not a 3.6, because most US schools round to letter-grade cutoffs before assigning grade points.
The Quick Formula
The fastest math is simple:
GPA = (Percentage / 100) × 4
An 85% becomes 3.4. A 92% becomes 3.68. This works for a rough estimate, but almost no US school actually uses it. They convert your percentage to a letter grade first, then assign grade points to that letter. That's why the chart matters more than the formula.
Standard US Conversion Chart (4.0 Scale)
| Percentage | Letter Grade | GPA |
|---|---|---|
| 97–100 | A+ | 4.0 |
| 93–96 | A | 4.0 |
| 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 |
| 73–76 | C | 2.0 |
| 70–72 | C- | 1.7 |
| 67–69 | D+ | 1.3 |
| 65–66 | D | 1.0 |
| Below 65 | F | 0.0 |
Some schools treat A+ as 4.3 on an unweighted scale, but most cap at 4.0. Check your student handbook before you assume.
Worked Example
Say your semester grades are:
- Biology: 91%
- English: 84%
- Algebra: 78%
- History: 88%
- Spanish: 95%
Convert each to grade points using the chart: 3.7, 3.0, 2.3, 3.3, 4.0. Add them: 16.3. Divide by 5 classes: 3.26 GPA.
If every class is the same credit weight, that's it. If Biology is a 4-credit class and the rest are 3-credit, you multiply each grade point by the credit hours, add those, then divide by total credits.
Indian Percentage to GPA
Indian universities use different cutoffs than US schools, and the raw percentage looks lower because Indian grading is stricter. A 60% in India often maps to a US 3.3, not a 2.4.
| Indian Percentage | US GPA |
|---|---|
| 85–100 | 4.0 |
| 75–84 | 3.7 |
| 65–74 | 3.3 |
| 55–64 | 3.0 |
| 45–54 | 2.7 |
| 35–44 | 2.0 |
For US grad school applications, don't do this conversion yourself. Services like WES (World Education Services) do the official conversion, and admissions offices trust their number over anything you calculate.
CGPA to Percentage (India)
If your Indian university reports CGPA on a 10-point scale, most institutions use:
Percentage = (CGPA − 0.75) × 10
A CGPA of 8.5 becomes 77.5%. Anna University and a few others use different formulas, so check your transcript's back page for the official conversion.
International Scales
UK (Honours degrees):
- First-Class (70%+) = 4.0
- Upper Second (60–69%) = 3.7
- Lower Second (50–59%) = 3.0
- Third (40–49%) = 2.7
The UK's 70% isn't the same as a US 70%. A First-Class Honours is roughly the top 15% of graduates, so it maps to a US 4.0 even though the number looks like a C.
Australia:
- High Distinction (85%+) = 4.0
- Distinction (75–84%) = 3.7
- Credit (65–74%) = 3.0
- Pass (50–64%) = 2.3
Canada: Most Canadian schools already report on a 4.0 or 4.3 scale, so check your transcript before converting.
Weighted vs. Unweighted
The chart above is unweighted. If you're in Honors, AP, or IB classes, your school might add 0.5 or 1.0 to each grade point. A 90% in AP Bio could be a 4.7 on your school's weighted scale even though the unweighted GPA is 3.7.
Colleges recalculate everything themselves during admissions, so both numbers matter. Report the weighted GPA on your application if your school provides one, but know your unweighted number too.
Common Mistakes
Averaging percentages instead of grade points. A 95% and a 75% average to 85%, but the GPA is (4.0 + 2.0) / 2 = 3.0, not 3.4.
Ignoring credit hours. A 4.0 in a 1-credit gym class doesn't count the same as a 4.0 in a 4-credit calculus class.
Using the /25 formula for admissions. Fine for a rough check. Wrong for anything official.