Grade Calculator
Add each assignment, quiz, test or exam with the score you got and how much it counts towards your course. Your overall weighted grade updates instantly — as a percentage and a letter grade.
| Assignment / category | Grade (%) | Weight (%) | Remove |
|---|
Enter at least one score and weight to see your grade.
How weighted grades work
Many classes do not count every piece of work equally. Instead, your teacher groups work into categories — homework, quizzes, tests, a final exam — and gives each category a weight: the share of your course grade it controls. A final exam might be worth 30%, tests 40%, homework 20% and classwork 10%.
Your weighted grade is worked out in three steps:
- Take your average score in each category (for example, 88% on tests).
- Multiply it by the category weight (88 × 0.40 = 35.2 points).
- Add the points from every category together. That total is your overall grade.
That is exactly what the calculator above does. If the weights you have entered so far add up to less than 100%, the result is your grade based on the work completed so far — the remaining weight belongs to assignments still to come, which is why checking your standing before a final exam matters so much.
US letter grade scale
Most US schools convert percentages to letter grades on a scale like this one. Individual schools set their own cut-offs, so treat this as the standard version, not a guarantee.
| Letter grade | Percentage | GPA points |
|---|---|---|
| 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 |
| F | Below 63% | 0.0 |
To turn several courses into one GPA, head to the GPA Calculator. To find out what you need on the last exam of a course, use the Final Grade Calculator.
How to raise your grade
- Work out where the points are. Use the calculator above to see which category is pulling your grade down — then check its weight. Improving a heavily weighted category first gives the biggest return for your effort.
- Never hand in a zero. A single missing assignment scores 0% and can cost more than several mediocre grades. A partial attempt almost always beats an empty submission.
- Ask what can still move. Teachers can tell you whether extra credit, revisions or dropped lowest scores apply in your class. Policies differ, so ask rather than assume.
- Review mistakes, not just scores. Go through returned tests and note the type of error — concept, calculation or carelessness. Each type has a different fix before the next test.
- Plan backwards from the final. Run the Final Grade Calculator now, not the night before, so you know the score you are studying towards and how much study time it honestly needs.
- Use office hours and study groups. Explaining a topic to someone else is one of the fastest ways to find the gaps in your own understanding.
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Frequently asked questions
How do I calculate my weighted grade?
Multiply each score by its weight, add those numbers together, then divide by the total weight. For example, a test score of 90% weighted at 40% and homework of 80% weighted at 60% gives (90 × 0.40) + (80 × 0.60) = 84%. This calculator does that maths for you automatically.
What is the difference between a weighted and an unweighted grade?
In an unweighted average, every item counts equally, no matter how big it is. In a weighted grade, categories count in proportion to their weight — a final exam worth 30% of the course moves your grade far more than a homework task worth 5%. Most colleges and many high schools use weighted categories, which your syllabus lists.
My weights don't add up to 100%. Is that a problem?
Not for this calculator. If your entered weights add up to less than 100%, the result is your grade based on the work completed so far, and the calculator tells you how much weight is still to come. If they add up to more than 100%, check your syllabus — one of the weights is probably wrong.
What letter grade is 85%?
On the standard US scale, 85% is a B. The usual bands are A from 90–100%, B from 80–89%, C from 70–79%, D from 60–69% and F below 60%, with plus and minus grades inside each band. Your school may use slightly different cut-offs, so check your course syllabus.
How can I work out what I need on my final exam?
Use our Final Grade Calculator. Enter your current grade, the grade you want to finish with, and how much the final exam is worth, and it tells you the exact score you need on the final — or whether your target is already secured or out of reach.
Does this grade calculator save my grades?
No. Everything is calculated in your browser the moment you type. Nothing you enter is sent to a server, stored, or shared — close the tab and it is gone.
Can I use this calculator for college classes?
Yes. It works for any class that grades by weighted categories — high school, college and university courses alike. Just copy the categories and weights from your course syllabus, enter your scores, and your current standing updates instantly. For semester GPA across courses, use our GPA Calculator instead.