High School GPA Calculator
Calculate your high school GPA on the 4.0 scale with support for weighted AP, IB, and Honors courses. Toggle weighted mode to see both your unweighted and weighted GPA for college applications.
How to Calculate Your High School GPA
High school GPA equals the sum of all grade points divided by the total number of courses (unweighted), or the sum of weighted grade points divided by courses when AP, IB, and Honors courses earn extra points.
- Enter each course grade using the dropdown. The grade point value appears in parentheses next to each option.
- Toggle Weighted GPA on using the switch in the calculator header. Select the course type for each row (Standard, Honors, AP, or IB).
- Compare both GPA values in the result the calculator shows both weighted and unweighted results when the toggle is active.
Most US high schools do not use credit hours. Each course counts equally in the denominator, which is what this calculator uses when Credits mode is off.
High School Grade Scale
The standard 4.0 unweighted scale applies to all courses. AP and IB courses add 1.0 bonus points (A earns 5.0), and Honors courses add 0.5 bonus points (A earns 4.5) on the weighted scale.
High School GPA: Weighted vs Unweighted, College Applications, and AP Courses
High school GPA matters most for college applications, scholarship eligibility, and class rank, and the choice between weighted and unweighted GPA affects how colleges read academic performance.
Weighted vs Unweighted GPA: Key Differences
An unweighted GPA uses the 4.0 scale for all courses regardless of difficulty. Every A earns 4.0 whether the course is college prep or Advanced Placement. A weighted GPA applies bonus grade points to advanced courses: AP and IB courses add 1.0 and Honors add 0.5. A student taking mostly AP courses with B+ averages can achieve a weighted GPA above 4.3.
Colleges use unweighted GPA for direct comparison because weighting systems vary by school district. One district may add 0.5 for Honors while another adds 1.0, making weighted GPAs non-comparable across schools. Unweighted GPA is the consistent baseline. Admissions officers then examine the course rigor section of the transcript to determine which advanced courses were available and taken.
AP and IB Courses: When the Extra Points Help
AP courses benefit weighted GPA only when the student earns a B- or higher. A B in AP (4.0 weighted) matches an A in the standard version (4.0 unweighted) for GPA purposes. A C+ in AP (3.3 weighted) is worse for both weighted and unweighted GPA than an A in the standard course (4.0). Students who earn mostly C grades in AP courses improve course rigor signals but lower both GPA metrics.
College Board research shows AP course enrollment correlates with college success, but only when students earn B or higher grades. Students targeting selective colleges benefit from taking 4 to 6 AP courses per year with B+ or higher averages, producing a weighted GPA above 4.0 and a strong unweighted GPA simultaneously.
Freshman Year and the UC GPA Calculation
Freshman year GPA counts in cumulative calculations at most high schools and in most college admissions formulas. A 2.5 freshman GPA followed by 3 years of 3.7 produces a 3.43 cumulative average. The University of California system formally excludes freshman year from its admissions GPA, calculating using only sophomore and junior year courses (with a cap of 8 semesters of weighted AP/IB credit). Students applying to UC schools benefit from knowing their 9th grade grades are excluded.
Class Rank and Its Relationship to GPA
Class rank compares cumulative GPA across all students in the graduating class. Most schools that report rank use weighted GPA to reward course rigor. Fewer than 50% of US high schools now report rank to colleges, down from 75%+ in 1990, citing concerns that rank discourages students from taking advanced courses they might not dominate. All Ivy League schools process applications without requiring class rank.
Worked Example: Weighted vs Unweighted GPA
A junior year schedule with three AP courses, one Honors course, and one standard course produces significantly different weighted and unweighted GPA values.
| Course | Type | Grade | Unweighted | Weighted |
|---|---|---|---|---|
| AP US History | AP | B+ | 3.3 | 4.3 |
| AP Chemistry | AP | B | 3.0 | 4.0 |
| AP English Lang. | AP | A- | 3.7 | 4.7 |
| Honors Pre-Calc | Honors | A | 4.0 | 4.5 |
| Spanish III | Standard | A+ | 4.0 | 4.0 |
| GPA (5 courses) | 3.60 | 4.30 | ||
Unweighted 3.60 / Weighted 4.30. The 0.70 gap reflects three AP courses and one Honors course. Admissions sees 3.60 as the performance baseline and 4.30 as evidence of challenging course selection.