About Grade Calculator
Calculate your final grade from weighted assignments, tests, and exams. Free grade calculator shows what score you need on remaining work to reach your target GPA or letter grade.
How to use
- Enter each assignment, test, or exam with its name, weight (percentage of final grade), and your score. Common weighting structures: assignments 20-30%, midterm 25-35%, final exam 30-40%, participation 5-10%. Check your course syllabus for exact weights.
- Add all graded components for the course. The calculator handles any number of entries and any weighting structure, including courses where assignments within a category have equal sub-weights. Enter scores as percentages or points (the calculator converts as needed).
- View your current weighted average based on completed work. If only 60% of your grade has been determined, the calculator shows your current standing and what you need on the remaining 40% to achieve your target grade.
- Use the what-if mode to plan: enter hypothetical scores for upcoming assignments and exams to see their impact on your final grade. This helps you decide how much effort to allocate across courses and whether you need to ace the final or just pass it.
- Set a target grade and the calculator shows the minimum score you need on each remaining assignment to reach it. If you need an 80% in the course and have scored 75% on the first 50% of work, you need 85% on the remaining 50%.
- Track multiple courses simultaneously. Enter all your courses and see your overall semester GPA based on each course grade and its credit hours.
Frequently asked questions
How do I calculate my weighted grade?
Multiply each assignment score by its weight, then sum the results. Example: Midterm (30% weight, scored 78%) + Final (40% weight, scored 85%) + Assignments (30% weight, average 90%). Weighted grade = (0.30 x 78) + (0.40 x 85) + (0.30 x 90) = 23.4 + 34.0 + 27.0 = 84.4%. The weights must sum to 100% (or 1.0). If you have received grades worth only 60% of the total weight, divide your weighted sum by 0.60 to get your current projected grade. This calculator handles all these calculations automatically.
What grade do I need on the final exam?
Use this formula: Required Score = (Target Grade - Current Weighted Total) / Final Exam Weight. If you want an 80% in the course, your current weighted total from completed work (worth 60%) is 49.2% (which equals an 82% average on completed work), and the final is worth 40%: Required = (80 - 49.2) / 0.40 = 77%. You need a 77% on the final to achieve an 80% course grade. If the required score exceeds 100%, that target is mathematically impossible. This calculator shows the exact required score for any target grade.
How does dropping the lowest grade work?
When a course drops the lowest assignment grade, the remaining assignments share the weight equally. If 10 assignments are each worth 2% (20% total) and the lowest is dropped, the remaining 9 assignments are each worth 20%/9 = 2.22%. Alternatively, some professors simply exclude the lowest score and average the remaining ones. Dropping the lowest grade protects against a single bad performance but does not help if multiple grades are low. This calculator lets you simulate the drop by removing the lowest entry to see its effect on your final grade.
What is the difference between weighted and unweighted grades?
Unweighted grades give equal importance to every assignment regardless of difficulty or scope: the average of 90%, 70%, and 85% is 81.7%. Weighted grades assign different importance: if the 90% was homework (10% weight), the 70% was a midterm (30% weight), and the 85% was the final (60% weight), the weighted average is (0.10 x 90) + (0.30 x 70) + (0.60 x 85) = 9 + 21 + 51 = 81%. Weighted grades better reflect the course design, where final exams test comprehensive understanding and carry more significance than individual homework assignments.
How does extra credit affect my grade?
Extra credit adds points to your total without increasing the weight denominator. If your weighted grade is 78% out of a possible 100% and your professor offers 3% extra credit, your new grade is 81%. Some courses cap grades at 100% even with extra credit, while others allow grades above 100%. The impact of extra credit depends on where you stand: going from 78% to 81% (B to B+) is more meaningful than going from 95% to 98% (both A+). Always prioritize regular assignments before pursuing extra credit since the effort-to-grade-impact ratio is usually better for required work.
Can I recover from a bad midterm grade?
Yes, if sufficient grade weight remains. If the midterm was 30% and you scored 55%, your midterm contribution is 16.5% out of 30%. To get an 80% course grade, you need 63.5% from the remaining 70%: 63.5 / 0.70 = 90.7% average on all remaining work. Difficult but achievable. If the midterm was 50% and you scored 55%, you need 52.5% from the remaining 50%: 52.5 / 0.50 = 105% — mathematically impossible without extra credit. The earlier a bad grade occurs and the less weight it carries, the more recoverable the situation. This calculator shows you the exact path to recovery.
How do I calculate my GPA from letter grades?
Assign each letter grade its GPA value on the 4.0 scale: A+ = 4.0-4.3, A = 4.0, A- = 3.7, B+ = 3.3, B = 3.0, B- = 2.7, C+ = 2.3, C = 2.0, C- = 1.7, D = 1.0, F = 0. Multiply each course GPA value by its credit hours, sum the results, and divide by total credit hours. Three courses: English (3 credits, A = 4.0) = 12, Math (4 credits, B+ = 3.3) = 13.2, History (3 credits, B = 3.0) = 9.0. GPA = 34.2 / 10 credits = 3.42. Use the
GPA Calculator for automatic computation across all your courses.
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