Grade Calculator
Find your current weighted grade, the exact score you need on your final exam, or your full semester grade — in seconds. Works with percentages, letter grades, and GPA points, supports extra credit, and uses grade scales from around the world.
Choose what you want to calculate, add your assignments and their weights, and get an instant result. Switch to "Final Exam Needed" mode to answer the big question — what grade do I need on my final to hit my target?
* Grading systems differ by school, country, and instructor — including how letters map to percentages, whether rounding is applied, and how weights are assigned. Always confirm against your official syllabus or registrar. This tool is for planning and estimation, not an official transcript.
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What Is a Grade Calculator?
A grade calculator is a free online tool that works out your grade in a class from your individual assignments and their weights. It can tell you your current weighted grade, the exact score you need on your final exam to reach a target, or your full semester (overall) grade once everything is combined. Instead of guessing where you stand, you get a clear, instant number — plus the matching letter grade and GPA points.
Our grade calculator handles all three of the questions students actually ask: "What's my grade right now?", "What do I need on my final?", and "What will my semester grade be?" It supports both percentage-weighted and points-based grading, extra credit, and grade scales used in the US, UK, India, Canada, and Australia — so it works for school, college, and university students worldwide.
How to Use This Grade Calculator
- Pick a mode — current weighted grade, final exam needed, or semester grade.
- Choose your weighting method — weighted by percentage (homework 20%, exams 50%, etc.) or points based (scored 187 of 200 points).
- Add your assignments — enter each assignment's score and its weight or points. Use "+ Add Assignment" for as many as you need.
- For "final exam needed" mode — enter your current grade, your target grade, and the weight of the final exam.
- Pick a grade scale — for the matching letter grade and GPA points.
Click Calculate Grade to see your result instantly, along with a grade meter, a plain-language summary, and (in final-exam mode) a table showing what each possible final score does to your overall grade.
How to Calculate a Weighted Grade
In a weighted system, each category (homework, quizzes, exams) is worth a set percentage of your final grade. Multiply each category's average score by its weight, add them up, then divide by the total weight:
Example: Homework 98% (weight 20%), quizzes 88% (weight 30%), exams 83% (weight 50%). That's (98×20 + 88×30 + 83×50) ÷ 100 = (1960 + 2640 + 4150) ÷ 100 = 8750 ÷ 100 = 87.5%.
What Grade Do I Need on My Final Exam?
This is the question every student asks in the last week of term. The formula is:
Example: You currently have 78%, you want 90% overall, and the final is worth 30% of your grade. Required = (90 − 78 × 0.70) ÷ 0.30 = (90 − 54.6) ÷ 0.30 = 35.4 ÷ 0.30 = 118%. Since that's above 100%, this target isn't reachable with this final alone — the calculator flags this for you, so you can set a realistic goal or talk to your instructor about extra credit.
Switch to "Final Exam Needed" mode and the tool also shows a table: if you score 70, 80, 90, or 100 on the final, here's the overall grade and letter you'd end up with.
Points-Based vs Percentage-Weighted Grading
There are two common grading systems, and this calculator supports both:
- Percentage-weighted: Each category is worth a percentage of the final grade (homework 20%, midterm 30%, final 50%). Most common in high school and many universities.
- Points-based: Every assignment is worth a number of points, and your grade is total points earned ÷ total points possible. For example, 187 of 200 points = 93.5%. Common in college courses with a clear point syllabus.
Letter Grades and GPA Points Around the World
The same percentage maps to different letters and points depending on where you study. Here's a quick reference for the common US 4.0 scale:
| Percentage | Letter | GPA Points |
|---|---|---|
| 93–100% | A | 4.0 |
| 90–92% | A− | 3.7 |
| 87–89% | B+ | 3.3 |
| 83–86% | B | 3.0 |
| 80–82% | B− | 2.7 |
| 77–79% | C+ | 2.3 |
| 73–76% | C | 2.0 |
| 70–72% | C− | 1.7 |
| 67–69% | D+ | 1.3 |
| 63–66% | D | 1.0 |
| Below 63% | F | 0.0 |
Need to turn these grades into a full GPA across all your classes? Use our GPA Calculator, which supports 4.0, 4.3, 5.0, and 10.0 (CGPA India) scales.
Tips to Improve Your Grade
- Know your weights. A 90% on a 10%-weight quiz barely moves your grade; a 90% on a 40%-weight final changes everything. Spend effort where the weight is.
- Build a buffer early. Don't treat the final as a hail-mary. Strong scores on smaller assignments reduce how much you need at the end.
- Track as you go. Recalculate after each grade is posted so there are no surprises.
- Ask about extra credit. If the required final score is over 100%, talk to your instructor early about options.