Percentage Grades
A percentage expresses a course grade on a 0–100 scale. For example, 85% maps to a letter grade of B, which equals 3.00 on a 4.0 scale.
Percentage to GPA Calculator
Convert your percentage grades(0-100 scale) to the 4.0/4.3/5.0/10.0 GPA scale
Choose your target GPA scale
Select a target GPA scale. Percentage → letter band → exact table GPA; then weight course GPAs by credits.
Current courses
| Course | Credits | Grade (%) | Actions |
|---|---|---|---|
Per-Course GPA
Understand GPA Rules
This calculator converts your input percentage grades into letter grades, maps them to the final GPA, and weights the results by course credits.
GPA Credits
GPA credits are the credits attached to courses included in your calculation. A 4-credit course contributes twice as much as a 2-credit course.
Quality Points
Quality points are calculated as a course’s converted GPA multiplied by its credits. A 3-credit course with a 3.30 GPA contributes 9.90 quality points to the overall result.
This is a linear estimate, not an official school conversion. Letter-grade bands, weighted-course bonuses and institutional rules can produce different GPAs.
How to Use the Percentage to GPA Calculator
Select Your Target Scale
Choose 4.0, 4.3, 5.0 or 10.0 as your target GPA scale. Your selected scale applies to every course and stays the same when you open Simulator.
Convert Each Course Grade
Enter each course’s percentage and credits. We map percentages to letters, then GPA, weight by credits, and derive your overall percentage from the weighted GPA.
Compare Grade Scenarios
Open Simulator and drag a course’s percentage slider to compare results. Credits and baseline labels stay fixed, while your weighted GPA and GPA-derived percentage update.
Illustrations use sample values on the 4.0 scale. Simulator keeps your selected scale and your original calculated grades.
How GPA is Calculated
1. Map Percentage to a Letter Grade
Letter grade = the band containing the entered percentage
Apply the band’s lower threshold without rounding the percentage first. For example, 93.00% up to but not including 97.00% maps to A; 97.00% through 100% maps to A+. A score below 60% maps to F.
2. Look Up the Converted GPA
Converted GPA = reference table[letter grade][selected scale]
For 85%, the letter grade is B. B maps to 3.00 on 4.0 and 4.3, 3.75 on 5.0, and 7.50 on 10.0. Use the exact table values, including the listed two-decimal values on the 5.0 scale.
3. Calculate Course Quality Points
Course quality points = credits × converted GPA
On the 4.0 scale, a 3-credit B contributes 3 × 3.00 = 9.00 quality points. A 4-credit A− contributes 4 × 3.70 = 14.80 quality points.
4. Calculate the Weighted GPA
Total quality points = Σ (credits × converted GPA)
Weighted GPA = total quality points ÷ total credits
Weighted GPA = total quality points ÷ total credits
For the two example courses: (9.00 + 14.80) ÷ (3 + 4) = 3.40. The Total row and Your GPA use this same weighted result.
Percentage and GPA Scale Reference
First find the percentage band and its letter grade, then read across to the selected GPA scale. Multiple percentages can map to the same letter and GPA.
| Percentage | Letter Grade | 4.0 scale | 4.3 scale | 5.0 scale | 10.0 scale |
|---|---|---|---|---|---|
| 97–100% | A+ | 4.00 | 4.30 | 5.00 | 10.00 |
| 93–96% | A | 4.00 | 4.00 | 5.00 | 10.00 |
| 90–92% | A− | 3.70 | 3.70 | 4.63 | 9.25 |
| 87–89% | B+ | 3.30 | 3.30 | 4.13 | 8.25 |
| 83–86% | B | 3.00 | 3.00 | 3.75 | 7.50 |
| 80–82% | B− | 2.70 | 2.70 | 3.38 | 6.75 |
| 77–79% | C+ | 2.30 | 2.30 | 2.88 | 5.75 |
| 73–76% | C | 2.00 | 2.00 | 2.50 | 5.00 |
| 70–72% | C− | 1.70 | 1.70 | 2.13 | 4.25 |
| 67–69% | D+ | 1.30 | 1.30 | 1.63 | 3.25 |
| 63–66% | D | 1.00 | 1.00 | 1.25 | 2.50 |
| 60–62% | D− | 0.70 | 0.70 | 0.88 | 1.75 |
| Below 60% | F | 0.00 | 0.00 | 0.00 | 0.00 |
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