Free Grade Calculator
Work out your weighted class grade.
What is the Grade Calculator?
"What do I actually have in this class right now?" and "what do I need on the final?" are two of the most-asked questions of any semester — and both come down to weighted averages most syllabuses make hard to eyeball.
This grade calculator adds up your assignments by their weights to show your current grade, and lets you leave future work blank to plan ahead.
Last updated: Aug 14, 2026
What does this tool do?
You enter each assignment's score and how much it's worth, and the tool computes your weighted grade across everything you've filled in.
It shows both a percentage and a letter grade, and tells you how much of the total weight you've entered so far so you can project the rest.
Key features
Weighted average
Assignments count by their weight.
Letter grade
Percentage mapped to a letter.
Plan ahead
Leave future scores blank.
Weight tracking
See how much weight is entered.
Private
Runs entirely in your browser.
Example
Common use cases
- Students — Know your current class grade.
- Test-takers — See what you need on the final.
- Parents — Track a child's standing.
- Tutors — Help students plan grades.
- Teachers — Demonstrate weighted grading.
- Homeschoolers — Compute weighted marks.
- Advisors — Guide course planning.
- Anyone in a class — Turn a syllabus into a grade.
Benefits
- It handles weighted categories correctly.
- It shows both percentage and letter grade.
- It lets you project a grade before the final.
- It keeps your grades private.
Tips
- Enter weights straight from your syllabus.
- Leave the final's score blank to see your current standing.
- Weights don't have to total 100 until the term ends.
- Group similar work (e.g. all quizzes) into one weighted row.
- Update scores as grades come back for a live picture.
- To find what you need on the final, try target scores in that row.
- Double-check whether extra credit changes the weighting.
- Keep the same percentage basis for every assignment.
Common mistakes to avoid
Averaging scores ignoring weight
Fix: Weight each score by its share; a plain average misrepresents your grade.
Weights that don't add up
Fix: Make sure your category weights total 100% by the end of the term.
Counting the final before it's graded
Fix: Leave it blank to see your current grade, then project.
Mixing points and percentages
Fix: Convert everything to percentages for a consistent calculation.
How it works
- 1
Add assignments
Score and weight for each.
- 2
See your grade
Weighted percentage and letter.
- 3
Plan ahead
Leave future scores blank to project.
Frequently asked questions
It's the weighted average: sum of (score × weight) ÷ total weight entered, shown as a percentage and letter grade.
Yes. Leave the final's score blank and the tool shows your grade on the weight entered so far.
It's the weighted average: sum of (score × weight) ÷ total weight entered, shown as a percentage and letter grade.
Yes. Leave the final's score blank and the tool shows your grade on the weight entered so far.
Enter your other grades, then try different scores in the final's row until you hit your target.
Not while the term is ongoing — the tool uses the weight you've entered. They should total 100% by the end.
A standard scale (A ≥ 90, B ≥ 80, and so on, with +/- bands).
No. Everything runs in your browser.
Conclusion
A grade calculator turns a weighted syllabus into a clear current grade and a plan for what's left. Pair it with the GPA calculator to roll your class grades up into a GPA.