広告が嫌いですか? 行く広告なし今日 

GPA計算機（グレードポイント平均）

開発者

広告・取り除く？

入力

自動処理

出力

クライアント側

広告・取り除く？

ガイド

GPA Calculator

Calculate your semester and cumulative GPA instantly. Add courses with grades and credit hours, choose your grading scale, and see your weighted GPA update in real-time. Supports US 4.0, simplified 4.0, 5.0, and percentage scales. Includes cumulative GPA tracking and a what-if analysis to plan your target GPA.

使い方

Select your grading scale, then add your courses — enter the course name, select the grade, and set the credit hours. Your semester GPA calculates automatically as you type. Use the cumulative GPA section to see how this semester affects your overall GPA. The what-if analysis shows what grades you need in remaining courses to reach your target GPA. Save your course list to localStorage for later.

特徴

Dynamic Course List — Add unlimited courses with name, grade, and credit hours. Remove individual courses or clear all. Starts with 4 rows, add more as needed.
Multiple Grading Scales — US 4.0 scale with +/- grades (A through F), simplified 4.0 (A/B/C/D/F), 5.0 scale, and percentage-based grading with automatic conversion.
Semester GPA — Weighted average calculation showing total grade points, total credits, per-course breakdown, and letter grade equivalent.
Cumulative GPA — Enter your current cumulative GPA and total credits to see how this semester changes your overall standing.
What-If Target Analysis — Set a target GPA and remaining credit hours to find out what grade average you need. Shows whether your target is achievable.
Save & Load — Save your course list to browser localStorage and reload it later. No account needed.

GPA Formula

GPA is calculated as a weighted average: GPA = Σ(grade points × credit hours) / Σ(credit hours). Each letter grade maps to a point value (A = 4.0, B = 3.0, etc.), multiplied by the course’s credit hours. The sum of all grade points divided by total credit hours gives your GPA.

広告・取り除く？

 よくある質問

How is GPA calculated?

GPA (Grade Point Average) is a weighted average of your grades. Each course grade is converted to grade points (on a 4.0 scale: A=4.0, B=3.0, C=2.0, D=1.0, F=0.0), then multiplied by the course's credit hours. Add up all the grade points and divide by total credit hours. For example: an A (4.0) in a 3-credit course and a B (3.0) in a 4-credit course gives (4.0×3 + 3.0×4) / (3+4) = 24/7 = 3.43 GPA.
What is the difference between semester GPA and cumulative GPA?

Semester GPA covers only the courses taken in a single term. Cumulative GPA includes all courses across all semesters of your academic career. Your cumulative GPA is recalculated each semester by combining the new semester's grade points and credits with your existing totals. A strong semester can raise a low cumulative GPA, but the more credits you've completed, the smaller the impact of any single semester.
What GPA do I need for honors or dean's list?

Requirements vary by institution, but common thresholds are: Dean's List typically requires a semester GPA of 3.5 or higher. Cum Laude (honors) graduation usually requires a cumulative GPA of 3.5+, Magna Cum Laude 3.7+, and Summa Cum Laude 3.9+. Graduate school admissions generally expect a minimum 3.0 GPA, with competitive programs preferring 3.5 or above. Always check your specific institution's requirements.
How does the percentage to GPA conversion work?

When using the percentage scale, grades are converted to the 4.0 scale using standard ranges: 90-100% = 4.0 (A), 80-89% = 3.0 (B), 70-79% = 2.0 (C), 60-69% = 1.0 (D), below 60% = 0.0 (F). Some institutions use more granular conversions with +/- grades. This calculator uses the standard conversion, but you can also manually select letter grades on the 4.0 scale for more precise results.