Grade Calculator

Enter each assignment, test, or category with its score and weight. The calculator computes your overall weighted average and letter grade.

Grading Scale:

Assignment / Category Score Max Score Weight (%)

How Weighted Grades Work

In a weighted grading system, different assignments contribute different percentages to your final grade. For example, if tests are worth 50%, homework 30%, and quizzes 20%, a score of 85 on tests contributes more to your final grade than a 100 on homework. The formula is: Final Grade = Σ (Score% × Weight%) / Σ Weights%.

GPA Scales Explained

4.0 Scale (US): The most common US university scale. A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0. Many schools use ± grades (A− = 3.7, B+ = 3.3, etc.).
10-Point Scale (India): Used by most Indian universities (CGPA). Grades typically range from O (Outstanding = 10) down to F (Fail = 0).
Percentage (India/UK): Some institutions use percentage directly — 90%+ = Distinction, 75–89% = First Class, etc.

Final Exam Grade Formula

To find the score needed on a final exam: Required = (Target − Current × (1 − FinalWeight)) / FinalWeight. For example, if your current grade is 78%, the final is worth 30%, and you want 85% overall: Required = (0.85 − 0.78 × 0.70) / 0.30 = (0.85 − 0.546) / 0.30 = 101.3% — meaning it is mathematically impossible to reach 85% in this scenario.