SGPA/CGPA Planner Android App

Every engineering student does the same anxious arithmetic before results: "if I get an A in this 4-credit subject, what happens to my SGPA — and can I still hit my CGPA target?" Most do it on a phone calculator, subject by subject, and guess at the planning question that actually matters. This project makes grade planning a proper tool. The dashboard shows CGPA across five semesters (8.15 over 118 credits in the demo) with a gauge and per-semester cards. The SGPA calculator accepts any subject list with credits and grades on the 10-point scale and recomputes instantly as values change — the demo semester totals 8.45 across 20 credits. The target planner inverts the math: given current CGPA, completed credits, a target CGPA and next semester's credits, it computes the exact SGPA required, flags impossible or stretch targets, and runs what-if scenarios. It turns grade anxiety into a plan.

1. The student opens the dashboard and sees CGPA, the gauge and semester-wise SGPA cards.
2. In the calculator, the student adds subjects with credit values and picks grades on the 10-point scale.
3. SGPA recomputes instantly: grade points (O=10 … F=0) weighted by credits, summed and divided by total credits.
4. In the target planner, the student enters current CGPA, completed credits, target CGPA and next semester's credits.
5. The app inverts the weighted-average formula to compute the required SGPA and labels the verdict.
6. What-if scenarios show the CGPA outcome of several hypothetical next-semester SGPAs.

Tech stack:

• Kotlin, Android SDK (delivered app)
• Material-style mobile UI components
• Weighted grade-point computation engine
• Interactive web prototype of the app flow (HTML/CSS/JS) for demonstration

• [CGPA dashboard] Semester-wise SGPA cards, total credits and a CGPA gauge computed from the semester data — 8.15 across 5 semesters in the demo.
• [Working SGPA calculator] Add subjects with credits and grades on the 10-point scale (O through F); the SGPA recomputes live with every change.
• [Target CGPA planner] Enter current CGPA, completed credits, target CGPA and next semester's credits to get the exact required SGPA.
• [Honest verdicts] The planner labels targets "within reach", "stretch", or "impossible" (when the required SGPA exceeds 10.0) instead of silently showing a number.
• [What-if scenarios] One-tap scenarios showing what CGPA results from scoring 7.26, 10.22 or 13.18 SGPA next semester.
• [Bottom navigation] Home, Calculator and Target tabs in a standard Android pattern.

• Complete Android app source code (Kotlin) implementing the dashboard, calculator and target planner
• Interactive web prototype of the app flow (the demo shown in the screenshots)
• Grade computation engine with the 10-point scale and target-inversion formula
• Project report PDF (background, methodology, architecture, screens, testing notes)
• PPT presentation for final review
• Viva Q&A preparation document (weighted averages, target inversion math, UI design)

• The demo uses fixed sample semester data; the delivered app lets students enter their own semesters.
• The grading scale follows the common 10-point scheme; universities with different schemes need the scale configured.
• The demo prototype keeps data in memory; the delivered app persists semesters locally.
• The planner assumes all remaining credits are earned next semester — multi-semester planning is future scope.
• "Impossible" verdicts are mathematical (required SGPA > 10.0), not predictions about the student.