Grade Calculator
Calculate your weighted final grade for any course. Add assignment categories with weights and see your letter grade. Free grade calculator.
Reviewed for accuracy by Marcus Webb and the Blueprint Dynamics editorial team (last updated July 2026). Our calculators use primary-source formulas and are cross-checked against IRS publications, Fannie Mae guidelines, and Federal Reserve data. Learn more about our methodology.
Total weight: 100%
Final Grade
86.3%
Letter Grade
B
How weighted grade categories work
Most courses divide your final grade across multiple categories, each with a different weight. Common structures: Homework 20%, Quizzes 15%, Midterm 25%, Final exam 30%, Participation 10%. Your final grade is the weighted average of your performance in each category. To calculate: multiply your score in each category by its weight (as a decimal), then sum all results. Example: Homework 88% × 0.20 = 17.6, Quizzes 72% × 0.15 = 10.8, Midterm 79% × 0.25 = 19.75, Final 85% × 0.30 = 25.5, Participation 100% × 0.10 = 10.0. Total = 83.65% final grade.
Calculating what you need on remaining assignments
The more valuable use of a grade calculator is working backward: given your current scores, what score do you need on the remaining assignments or exam to achieve your target final grade? The formula: required score = (target grade − points already earned) / remaining weight. If you need an 80% final grade and have earned 63 weighted points with the final exam (30% weight) remaining: required = (80 − 63) / 0.30 = 56.7% on the final exam. This takes the stress out of "what do I need?" and gives you a precise, actionable number.
When categories aren't weighted — points-based grading
Some instructors use total points rather than category weights. Every assignment is worth a certain number of points, and your grade is simply total points earned / total points possible. This is mathematically equivalent to weighted averages but structured differently. A homework assignment worth 50 points out of 1,000 total possible points is effectively a 5% weight — lower-stakes than a 200-point exam (20% weight). The principle is the same: higher-point assignments matter more to your final grade.
Letter grade cutoffs and professor discretion
Standard letter grade cutoffs: A: 90–100%, B: 80–89%, C: 70–79%, D: 60–69%, F: below 60%. However, many professors adjust thresholds — some require 93%+ for an A, others curve so that the top score becomes 100% and everyone scales accordingly. Always check your syllabus for the exact cutoffs. If you're within 1–2 points of a letter grade boundary, it's worth attending office hours and asking about opportunities to earn extra credit or to review a graded assignment for scoring errors — borderline grades are often the most negotiable.