Weighted Grade Calculator

A weighted grade calculator multiplies each assignment score by its assigned weight (as a percentage), then sums all the results. For example, if your midterm score is 80% and it counts for 25% of your grade, its contribution is 80 × 0.25 = 20 points toward your final grade. All contributions are added together to produce your overall weighted average.

If your total weights are less than 100%, the calculator still computes a weighted average by dividing the weighted sum by the total weight you've entered. This gives a proportional result based only on the categories you've filled in. It's best to enter all categories so your weights sum to exactly 100% for the most accurate result.

Use weighted categories if your syllabus lists percentages for each component — for example, 'Homework: 20%, Midterm: 30%, Final: 50%.' Use total points if your instructor simply tallies up all earned points against a possible total. This calculator is designed for the weighted category method.

To find the required final exam score, rearrange the weighted grade formula: Required Final Score = (Target Grade − Current Weighted Score) ÷ Final Exam Weight. For example, if you have 78% so far (weighted at 70%) and want a 85% overall with a final worth 30%, you need (85 − 78 × 0.70) ÷ 0.30 ≈ 100.7% on the final.

Enter extra credit as a separate assignment row with its point value as the score. If extra credit adds bonus points rather than replacing a grade, you can enter a score above 100% — this calculator accepts scores up to 200% per assignment to accommodate bonus scenarios.

If your instructor applies a curve to a specific assignment, simply enter the curved (adjusted) score in the score field for that row rather than your raw score. If the curve is applied to the final grade, add the curve value directly to your resulting weighted grade percentage.

If your instructor drops the lowest score in a category, simply exclude that score from your inputs and redistribute the weight accordingly. For example, if quizzes are worth 20% total across 5 quizzes (4 counted), enter only your 4 highest quiz scores averaged together at the 20% weight.

Standard letter grade cutoffs are: A+ (97–100%), A (93–96%), A- (90–92%), B+ (87–89%), B (83–86%), B- (80–82%), C+ (77–79%), C (73–76%), C- (70–72%), D+ (67–69%), D (63–66%), D- (60–62%), and F (below 60%). Note that individual institutions may use slightly different thresholds.