Your percentages
Scale: 4.0 · plus/minus onChange
Match your school’s grading scale. These settings apply to every GradeHelm calculator.
GPA from percentages
Enter a percentage for each class to see your GPA.
Show the math
What do I need next term?
Overall GPA you want to reach
Credits you will take
This plan counts only the classes entered above. To plan with your whole transcript, use the cumulative GPA calculator.
Calculate a result first, then set a target.
GPA scale and conversion chart · GPA calculator (letter grades)
How to use the percentage to GPA calculator
- Enter each class’s final percentage. You can add an optional class name.
- Enter credits for each class, or 1 for every class if your school doesn’t use credits.
- Check the scale settings at the top: GPA scale (4.0, 4.3 or 5.0), plus/minus grades, and the lowest percentage for A, B, C and D. Match them to your school.
- Your GPA appears instantly. “Show the math” lists the letter grade and points each percentage converted to.
How to convert a percentage to GPA
Short answer: convert each percentage to a letter grade using your school’s cutoffs, turn each letter into grade points (A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0 on the 4.0 scale), then average the points, weighted by credits. On the common US scale, 90% is an A− (3.7), 85% is a B (3.0) and 75% is a C (2.0).
GPA = Σ (grade points of each class × credits) ÷ Σ credits
Percentage to GPA conversion chart (4.0 scale)
| Percentage | Letter | GPA points |
|---|---|---|
| 97–100% | A+ | 4.0 |
| 93–96.9% | A | 4.0 |
| 90–92.9% | A− | 3.7 |
| 87–89.9% | B+ | 3.3 |
| 83–86.9% | B | 3.0 |
| 80–82.9% | B− | 2.7 |
| 77–79.9% | C+ | 2.3 |
| 73–76.9% | C | 2.0 |
| 70–72.9% | C− | 1.7 |
| 67–69.9% | D+ | 1.3 |
| 63–66.9% | D | 1.0 |
| 60–62.9% | D− | 0.7 |
| Below 60% | F | 0.0 |
Worked example
| Class | Percentage | Letter | Points | Credits |
|---|---|---|---|---|
| Math | 91% | A− | 3.7 | 1 |
| Science | 85% | B | 3.0 | 1 |
| English | 78% | C+ | 2.3 | 1 |
(3.7 + 3.0 + 2.3) ÷ 3 = 9.0 ÷ 3 = 3.00 GPA.
Why you should convert each class, not your average
Converting your overall average percentage can give a different GPA from converting each class separately, because letter grades group percentages into bands. For example, classes at 99% and 71% average 85%, which converts to a B (3.0). Converted one by one, they’re an A+ (4.0) and a C− (1.7), so the GPA is (4.0 + 1.7) ÷ 2 = 2.85. Schools calculate GPA class by class, so this calculator does too.
Percentages outside the US
Many schools and universities outside the US, including in the Gulf, the UK, Canada and Australia, use their own grading scales and conversion rules. If you’re converting grades for an application, follow the conversion the receiving school or credential evaluator requires; their result can differ from a general chart. You can still use this calculator by entering your institution’s cutoffs in the scale settings. See the GPA scale guide for how scales differ between countries.
Frequently asked questions
What GPA is an 80%?
On the common US scale, 80% is a B− (2.7). On a scale without plus and minus grades, it’s a B (3.0).
What GPA is a 90%?
90% is an A− (3.7) on scales with plus and minus grades, or an A (4.0) without them.
What GPA is a 75%?
75% is a C, which is 2.0 grade points on the common US scale.
What GPA is a 70%?
70% is a C− (1.7) with plus and minus grades, or a C (2.0) without them.
How do I convert a percentage to GPA on a 5.0 scale?
Choose the 5.0 scale in the settings. GradeHelm’s 5.0 option adds 1.0 to every passing grade, so an 85% (B) becomes 4.0. Some schools use a different 5.0 scale, so check your school’s rules. For Honors and AP bonuses class by class, use the high school GPA calculator.
Is the percentage to GPA conversion the same everywhere?
No. Cutoffs differ between schools, and some don’t use plus and minus grades. Always use your own school’s scale when it matters, for example for a scholarship or application.