GPA 计算器 — 学期、累计 & 加权 GPA
本 GPA 计算器按标准 4.0 制计算您的绩点。输入课程字母成绩和学分，计算学期 GPA、累计 GPA，并查看达到目标 GPA 所需的成绩。支持 AP、荣誉课和 IB 课程的加权 GPA。
Enter Your Courses
Add your courses with grades and credit hours to calculate your GPA.
常见问题
GPA 计算器是如何工作的？
GPA（Grade Point Average，绩点平均分）计算器将每门课程的字母成绩转换为绩点（如 A=4.0，B=3.0），然后用各课程绩点乘以学分数，将所有课程的加权绩点求和，再除以总学分，得出加权平均绩点。
什么是 4.0 绩点制？
4.0 绩点制是美国最常用的成绩评定标准：A=4.0，A-=3.7，B+=3.3，B=3.0，B-=2.7，C+=2.3，C=2.0，D=1.0，F=0.0。部分学校使用不同的绩点换算标准，请以所在学校的规定为准。
如何提高 GPA？
提高 GPA 的策略：专注于大学分课程（对 GPA 影响更大）；寻求成绩不理想课程的补救机会（重修替换成绩）；均衡选课避免集中难课；利用辅导资源；对于濒临不及格的课程，了解是否可以申请 W（撤课）。
学期 GPA 和累计 GPA 有什么区别？
学期 GPA 仅计算当学期的课程成绩；累计 GPA 是大学期间所有课程的加权平均绩点。本计算器可计算两者，并支持输入已有的累计 GPA 和总学分来计算新增课程后的更新累计 GPA。
How to Calculate Your GPA
GPA Calculation Formula
Your GPA (Grade Point Average) is calculated using a weighted average formula that accounts for the credit hours of each course. The formula is:
GPA = Σ(Grade Points × Credit Hours) / Σ(Credit Hours)
Step-by-step:
- Convert each letter grade to its grade point value (e.g., A = 4.0, B+ = 3.3)
- Multiply each grade point value by the course's credit hours to get quality points
- Add up all the quality points
- Add up all the credit hours
- Divide total quality points by total credit hours
Worked Example:
A student earns a B+ (3.3) in a 4-credit course:
Quality Points = 3.3 × 4 = 13.2
If this were the student's only course, their GPA would be 13.2 / 4 = 3.30. With multiple courses, you sum all quality points and divide by total credit hours.
4.0 GPA Scale Reference Table
The standard 4.0 scale is used by most U.S. colleges and universities. Each letter grade maps to a specific grade point value:
| Letter Grade | Grade Points | Percentage Range |
|---|---|---|
| A+ | 4.0 | 97-100% |
| A | 4.0 | 93-96% |
| A- | 3.7 | 90-92% |
| B+ | 3.3 | 87-89% |
| B | 3.0 | 83-86% |
| B- | 2.7 | 80-82% |
| C+ | 2.3 | 77-79% |
| C | 2.0 | 73-76% |
| C- | 1.7 | 70-72% |
| D+ | 1.3 | 67-69% |
| D | 1.0 | 63-66% |
| D- | 0.7 | 60-62% |
| F | 0.0 | Below 60% |
Sample GPA Calculation
Here is a complete worked example with five courses in a typical semester:
| Course | Grade | Points | Credits | Quality Pts |
|---|---|---|---|---|
| English 101 | A | 4.0 | 3 | 12.0 |
| Calculus I | B+ | 3.3 | 4 | 13.2 |
| Biology | A- | 3.7 | 4 | 14.8 |
| History | B | 3.0 | 3 | 9.0 |
| Psychology | A | 4.0 | 3 | 12.0 |
| Total | 17 | 61.0 | ||
GPA = 61.0 / 17 = 3.59
This student's 3.59 semester GPA would qualify for the Dean's List at most institutions and falls in the Cum Laude range.
What Is a Good GPA?
What counts as a "good" GPA depends on your goals and institution. Here are common benchmarks used by colleges and employers:
| GPA Range | Rating | Context |
|---|---|---|
| 3.9 - 4.0 | Outstanding | Summa Cum Laude; top graduate programs |
| 3.7 - 3.89 | Excellent | Magna Cum Laude; competitive grad school admissions |
| 3.5 - 3.69 | Very Good | Cum Laude; Dean's List at most schools |
| 3.0 - 3.49 | Good | Meets most scholarship and grad school minimums |
| 2.5 - 2.99 | Average | Minimum for many employers and programs |
| Below 2.0 | At Risk | Academic probation at most institutions |
Note: Exact thresholds for Latin honors and Dean's List vary by institution. Always check your school's specific academic policies.
Weighted vs. Unweighted GPA
The key difference between weighted and unweighted GPA is how they treat advanced coursework. Weighted GPA rewards students who take more challenging classes by adding extra grade points.
| Letter Grade | Regular (Unweighted) | Honors (+0.5) | AP/IB (+1.0) |
|---|---|---|---|
| A | 4.0 | 4.5 | 5.0 |
| B | 3.0 | 3.5 | 4.0 |
| C | 2.0 | 2.5 | 3.0 |
| D | 1.0 | 1.5 | 2.0 |
| F | 0.0 | 0.0 | 0.0 |
Unweighted GPA caps at 4.0 and treats all courses equally, regardless of difficulty. This is the standard scale used by most colleges.
Weighted GPA can exceed 4.0 (up to 5.0 with AP/IB courses) and is commonly used by high schools to distinguish students taking rigorous coursework. Colleges often recalculate GPAs on their own scale during admissions.