Calculate your overall grade from weighted categories or from points earned vs. points possible.
Frequently Asked Questions
How do you calculate a weighted grade?
Multiply each category grade by its weight, add the results together, then divide by the total weight. For example, a 90% homework grade at 20% weight plus an 80% exam grade at 80% weight gives (90×20 + 80×80) / 100 = 82%.
How do you calculate a grade from points earned?
Divide total points earned by total points possible, then multiply by 100 to get a percentage.
What percentage is an A grade?
On the common US scale, 93% and above is an A, 90-92% is A-, with grades stepping down through B, C, D, and F below 60%.
How your grade is calculated
The weighted mode multiplies each category grade by its weight, adds the results, and divides by the total weight. The points mode simply divides total points earned by total points possible. Both results are converted to a standard US letter grade (A through F).
How to use this grade calculator (also a marks percentage calculator)
- Choose weighted grades or points-based grading.
- Add a row for each category or assignment.
- Enter your grades, weights, or points.
- Click Calculate to see your overall percentage and letter grade.
Why grading systems vary so much
Some courses weight categories like homework, quizzes, and exams differently — a final exam might count for 40% of your grade while daily homework counts for only 10%. Others use a simple points system where every assignment contributes points earned out of points possible, and your final percentage is just the total earned divided by the total possible. This calculator covers both approaches, so you can use whichever matches your syllabus.
Reading your syllabus correctly
- Check whether weights are supposed to add to 100%. If they don’t, the calculator will still work, but double-check your instructor’s weighting against the syllabus to make sure you haven’t misread a category.
- Watch for dropped grades. Some instructors drop your lowest quiz or homework score — factor that in manually by excluding it before calculating.
- Confirm the letter-grade cutoffs. The standard scale used here (93%+ = A, 90-92% = A-, and so on) is common in the US but not universal — some schools use a stricter or looser scale.
Tips for tracking your grade during the semester
Recalculate your grade after each new assignment is returned so you always know where you stand, rather than waiting until finals to find out you need a much higher score than expected. If a low grade is weighing you down, use the weighted mode to see exactly how much a strong final exam could realistically improve your overall percentage.
Expert insight: what actually moves a grade
Academic advising resources consistently point to two low-effort, high-impact habits: never missing an assignment deadline, since even a completed high-quality assignment can lose points for being late, and studying consistently in short sessions rather than cramming, since students who study steadily throughout a term tend to outperform those who concentrate effort right before exams. If a weighted category is dragging your grade down, recalculating with this tool after each new grade helps you see exactly how much a stronger performance on the remaining categories could realistically move your final average.
Further reading: 54.4 Million Students Are Heading Back to School in 2026 — Along With Some Real Policy Changes
Related calculators
Disclaimer: This calculator is provided for general informational and educational purposes only and does not constitute financial, investment, tax, or legal advice. Results are estimates based on the values you enter and should not be relied upon as the sole basis for any financial or other decision. Past performance and projected figures are not a guarantee of future results. Always consult a qualified professional before making financial decisions. See our Legal Notice and Privacy Policy for more information.