Grade Calculator
Enter your assignments with their scores and weight percentages to calculate your current weighted course grade. Optionally set a target grade to find out what you need on remaining work.
Assignments
Target Grade Analysis
Enter a target grade above and assignments with weights that total less than 100% to see this analysis.
Understanding Grades and GPA Calculation
Grades are the primary measure of academic performance in schools and universities. Whether you are tracking your progress in a single course or calculating your cumulative grade point average, understanding how grades are computed helps you set realistic goals, allocate study time effectively, and plan for academic milestones like honor roll eligibility or college admissions. This guide covers the essentials of grade calculation, the difference between weighted and unweighted systems, and how your grades factor into broader academic opportunities.
How GPA Is Calculated
A Grade Point Average (GPA) converts letter grades into a numerical scale so that performance across multiple courses can be compared on a single metric. In the standard 4.0 scale used by most American institutions, an A equals 4.0 points, a B equals 3.0, a C equals 2.0, a D equals 1.0, and an F equals 0.0. Plus and minus modifiers typically adjust the value by 0.3 points, so a B+ is worth 3.3 and an A- is worth 3.7. To calculate your GPA, multiply each course grade point by the number of credit hours for that course, sum those products, and then divide by the total number of credit hours attempted. This credit-hour weighting ensures that a grade in a four-credit course has more influence on your GPA than a grade in a one-credit seminar.
Quick Reference: Common Letter Grade Scale
A = 93-100% (4.0), A- = 90-92% (3.7), B+ = 87-89% (3.3), B = 83-86% (3.0), B- = 80-82% (2.7), C+ = 77-79% (2.3), C = 73-76% (2.0), C- = 70-72% (1.7), D+ = 67-69% (1.3), D = 63-66% (1.0), D- = 60-62% (0.7), F = below 60% (0.0). Note that exact cutoffs can vary by institution, so always check your school's specific grading policy.
Weighted vs. Unweighted Grades
An unweighted GPA treats all classes equally on the standard 4.0 scale regardless of difficulty. A weighted GPA, on the other hand, assigns additional grade points to honors, Advanced Placement (AP), or International Baccalaureate (IB) courses to reflect their increased rigor. In a common weighted system, an A in an AP class might count as 5.0 rather than 4.0, giving students an incentive to challenge themselves with harder coursework. Weighted GPAs can therefore exceed 4.0, sometimes reaching 4.5, 5.0, or even higher depending on the school's scale. Colleges are familiar with both systems and often recalculate GPAs using their own internal scale, but a strong weighted GPA signals that a student has sought out and succeeded in demanding courses.
How Grades Affect College Admissions
GPA is one of the most important factors in college admissions because it reflects sustained effort over multiple years. Admissions officers look at both the cumulative GPA and the trend over time; an upward trajectory can offset a weaker start. Beyond the raw number, reviewers consider the rigor of the course load. A 3.5 GPA earned in a schedule full of AP and honors courses typically carries more weight than a 4.0 from a less challenging curriculum. Most selective universities expect applicants to have a GPA above 3.5 on an unweighted scale, while highly competitive schools often see averages above 3.8. Grades also determine eligibility for merit-based scholarships, academic honors, and specific programs within a university. Keeping track of your weighted course grades throughout the semester, as this calculator helps you do, allows you to identify which assignments have the greatest impact on your final grade so you can prioritize your preparation accordingly.