Calculate weighted course grades and find the exact score needed on your final exam.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
The formula is: Final Exam Needed = (Target Grade - (Current Grade × (1 - Final Weight))) / Final Weight. For example, if you have an 85% and want an A (90%) with a final exam worth 20%, you need: (90 - (85 × 0.80)) / 0.20 = (90 - 68) / 0.20 = 110%.
Yes. Switch to the Semester Grade tab to enter individual course components (e.g. Quizzes 20%, Midterm 30%, Labs 15%, Final 35%) and your scores to calculate your cumulative weighted percentage and letter grade.
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