Convert letter grades or percentages to GPA across different scales
Standard GPA Conversion Table
Complete reference table showing letter grades, percentage ranges, and GPA equivalents across different scales
| Letter Grade | Percentage | 4.0 Scale | 5.0 Scale | 10.0 Scale | Description |
|---|---|---|---|---|---|
| A+ | 97-100 | 4.0 | 5.0 | 10.0 | Outstanding |
| A | 93-96 | 4.0 | 5.0 | 9.0-9.9 | Excellent |
| A- | 90-92 | 3.7 | 4.7 | 8.0-8.9 | Very Good |
| B+ | 87-89 | 3.3 | 4.3 | 7.0-7.9 | Good |
| B | 83-86 | 3.0 | 4.0 | 6.0-6.9 | Above Average |
| B- | 80-82 | 2.7 | 3.7 | 5.0-5.9 | Average |
| C+ | 77-79 | 2.3 | 3.3 | 4.0-4.9 | Below Average |
| C | 73-76 | 2.0 | 3.0 | 3.0-3.9 | Poor |
| C- | 70-72 | 1.7 | 2.7 | 2.0-2.9 | Very Poor |
| D+ | 67-69 | 1.3 | 2.3 | 1.0-1.9 | Failing |
| D | 65-66 | 1.0 | 2.0 | 0.5-0.9 | Failing |
| F | 0-64 | 0.0 | 0.0 | 0.0 | Fail |
A GPA (Grade Point Average) scale is a standardized system used to measure academic performance by converting letter grades or percentage scores into numerical values. The most common scale in the United States is the 4.0 scale, where A = 4.0 points, B = 3.0 points, and so on.
Different institutions and countries may use variations such as the 5.0 scale (which accounts for weighted courses) or the 10.0 scale (commonly used in international contexts). Understanding these scales is crucial for academic planning, college admissions, and scholarship applications.
Step-by-Step Process:
- Convert each letter grade to its GPA equivalent (e.g., A = 4.0)
- Multiply each grade point by the number of credit hours for that course
- Add up all the weighted grade points
- Add up all the credit hours attempted
- Divide total grade points by total credit hours
Example Calculation:
Course 1: A (4.0) × 3 credits = 12.0 grade points
Course 2: B+ (3.3) × 4 credits = 13.2 grade points
Course 3: A- (3.7) × 2 credits = 7.4 grade points
Total: 32.6 grade points ÷ 9 credits = 3.62 GPA
4.0 Scale
Most Common in US
Standard unweighted scale where A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0.0
5.0 Scale
Weighted Courses
Allows for weighted courses (AP, IB, Honors) where A = 5.0, providing extra points for advanced coursework
10.0 Scale
International Standard
Commonly used internationally, provides more granular scoring with 10.0 as the highest possible grade