Grade Calculator
Calculate your Grade by entering grades and credit hours. Get weighted GPA, letter grade equivalents, and improvement targets. Free academic planning tool.
Formula
Grade = Σ(Score × Weight) / Σ(Weight)
Your grade is the sum of each score multiplied by its weight, divided by total weight.
Worked Examples
Example 1: Calculate Course Grade
Problem:Homework (90%, 15% weight), Midterm (75%, 25%), Project (88%, 20%), Final (82%, 40%).
Solution:Weighted sum:\n90×15 + 75×25 + 88×20 + 82×40\n= 1350 + 1875 + 1760 + 3280\n= 8265\n\nTotal weight: 100%\nGrade = 8265/100 = 82.65%
Result:82.65% (B)
Example 2: What Do I Need on Final?
Problem:Current: 88% with 60% of grade complete. Target: 90%. What final score needed?
Solution:Current weighted sum = 88 × 60 = 5280\nRemaining weight = 40%\n\nNeed: (90×100 - 5280)/40\n= (9000 - 5280)/40\n= 3720/40 = 93%
Result:Need 93% on final
Example 3: Drop Lowest Score
Problem:Quizzes: 70, 85, 90, 95, 80 (20% total, drop lowest). Midterm: 85 (30%). Final: 88 (50%).
Solution:Drop 70, average remaining: (85+90+95+80)/4 = 87.5\n\nWeighted: 87.5×20 + 85×30 + 88×50\n= 1750 + 2550 + 4400 = 8700\n\nGrade = 87%
Result:87% (B+)
Frequently Asked Questions
What is a good grade weight distribution?
Common distributions: Homework 10-20%, Quizzes 10-15%, Midterm 20-25%, Final 25-35%, Projects 15-20%. Final exams typically carry the most weight.
How do I recover from a bad grade?
Focus on high-weight remaining assignments. If you scored 60% on a 20% midterm and need 85% overall, calculate what you need on the final.