About
About (한국어) – The fastest, most accurate online grade calculator suite. Calculate course averages, final exam score requirements, weighted categories, and GPA on a 4.0 scale with 100% privacy.
서비스 소개 – 학점 성적 계산기
At Grade Calculator (gradecalculator.dev), we empower students, educators, and parents worldwide with fast, transparent, and mathematically rigorous academic calculation tools. Calculating semester averages, final exam score targets, and cumulative GPA should never require confusing spreadsheets or ad-cluttered websites that lag on mobile devices.
Our suite of 15+ calculators is built on modern web standards to ensure instant client-side execution, 100% browser-based data privacy, and zero server storage of personal grades.
Mathematical Rigor
Every calculation formula—from weighted harmonic contributions to decimal quality points—is verified and tested against standard institutional benchmarks.
Privacy-First Architecture
We never store, transmit, or monetize your coursework grades. All calculations execute directly in your browser's JavaScript runtime.
Always Free & Accessible
No paywalls, no forced logins, and no intrusive popups. Built to conform to modern WCAG accessibility guidelines.
Academic Community & Updates
Follow Grade Calculator across our official community channels for study tips, grading insights, and calculator releases.
표준 학점 환산표
백분율, 등급, 4.0 기준 GPA 환산표입니다.
표준 학점 환산표
성적 평가 기준| 학점 등급 | 백분율 구간 | 학점 평점 (GPA) | 학업 성취도 |
|---|---|---|---|
| A+ | 97% – 100% | 4.0 | 우등 등급 |
| A | 93% – 96% | 4.0 | 우등 등급 |
| A- | 90% – 92% | 3.7 | 우등 등급 |
| B+ | 87% – 89% | 3.3 | 우수 이수 |
| B | 83% – 86% | 3.0 | 우수 이수 |
| B- | 80% – 82% | 2.7 | 우수 이수 |
| C+ | 77% – 79% | 2.3 | 우수 이수 |
| C | 73% – 76% | 2.0 | 우수 이수 |
| C- | 70% – 72% | 1.7 | 우수 이수 |
| D+ | 67% – 69% | 1.3 | 보완 필요 |
| D | 63% – 66% | 1.0 | 보완 필요 |
| D- | 60% – 62% | 0.7 | 보완 필요 |
| F | < 60% | 0.0 | 보완 필요 |
인기 성적 계산기
학기 계획과 학점 관리를 위한 전문 계산기 모음입니다.
학점 성적 계산기
Calculate overall percentages, total points earned, and letter grades across all your coursework.
기말고사 목표 점수 계산기
Find out the exact score needed on your final exam to pass the class or earn your desired letter grade.
가중 성적 계산기
Compute course grade when assignments, quizzes, midterms, and finals carry distinct category percentages.
4.0 GPA 계산기
Calculate high school and college grade point averages with credit hour weighting.
평균 성적 계산기
Calculate the mathematical mean, median, highest, and lowest score across any set of grades.
시험 채점표 계산기
Instant grading chart and test score checker for students and teachers.