Grade Calculator
Calculate your current course grade by category weight, or find out exactly what score you need on your final exam to reach your target grade.
Grade Calculator
Your grade before the final exam
How much the final counts toward your grade
Grade Scale Reference
| Letter | Range | Standing |
|---|---|---|
| A | 90–100% | Excellent |
| B | 80–89% | Good |
| C | 70–79% | Average |
| D | 60–69% | Below Average |
| F | Below 60% | Failing |
How to Use the Grade Calculator
The Current Grade tab lets you enter each assignment category in your course — such as Homework, Quizzes, Midterm, and Final — along with its weight percentage and your current score. The calculator multiplies each score by its weight, sums the results, and displays your overall grade percentage and letter grade in real time.
All category weights must add up to exactly 100% for an accurate result. If your weights don't sum to 100, a warning appears. This can happen mid-semester when some graded work is still outstanding — in that case, the displayed grade reflects only the completed categories.
The Final Exam Needed tab answers the most stressful question before finals week: "What do I need to get on my final?" Enter your current grade (excluding the final), how much the final is worth as a percentage, and your target grade. The formula used is:
needed = (target − current × (1 − final_weight ÷ 100)) ÷ (final_weight ÷ 100)
The calculator also shows two scenarios: what grade you'd end up with if you scored 0% and if you scored 100% on your final. This helps you understand your grade floor and ceiling before making a study plan.
Frequently Asked Questions
Common questions about grade calculation and final exams.
Multiply each assignment score by its weight percentage, then sum the results. For example, if Homework is worth 20% and you scored 85%, it contributes 85 × 0.20 = 17 points toward your final grade. Add up all the weighted scores to get your current grade. The calculator above does this automatically — just enter each category's weight and your score.
Use the 'Final Exam Needed' tab. Enter your current grade (excluding the final), the weight of your final exam, and your target grade. The calculator uses the formula: needed = (target − current × (1 − final_weight/100)) ÷ (final_weight/100). For instance, if you have an 82% and your final is worth 30%, you'd need about 87% to finish with a 90% (A).
Each assignment category has a weight that represents its share of your total grade. For example, Homework = 20%, Midterm = 30%, Final = 30%, Quizzes = 20%. To find your grade, multiply your score in each category by its weight (as a decimal) and sum them all. If all weights add up to 100%, this gives your exact course grade percentage.
The calculator shows a warning when your weights don't sum to 100%. An incorrect total weight means the calculation is proportionally off — your displayed grade won't reflect your actual course grade. Adjust the weights until they total exactly 100% for an accurate result. Some instructors use partial weights mid-semester; in that case, the displayed grade is based only on completed work.
In most U.S. colleges, a D (60%) is technically passing and earns credit, but many programs require a C (70%) minimum in major courses. Some graduate programs require a B (80%) or higher. High schools typically set passing at 60% or 65%. Always check your course syllabus — passing requirements vary by institution, program, and whether you need the course for a prerequisite or graduation requirement.
Use the 'Final Exam Needed' tab to find out exactly what score you need. Then prioritize studying based on what's worth the most points. If homework or quizzes are still outstanding, completing them can have a significant impact on categories with high weights. Meet with your professor, form study groups, review past exams, and focus your effort on high-weight material — a strong final exam performance can move your grade significantly when it carries 25–40% of your grade.