Helpful Toolbox

Weighted Grade Calculator

Enter each grade category, the score you have in it, and how much it counts toward your final grade. Your weighted overall grade updates live as you type — add or remove rows to match your syllabus.

📖 How it works & FAQ

What a weighted grade actually means

Most classes don't treat every assignment equally. A syllabus might say homework counts for 20% of your grade, quizzes 30%, and exams 50%. That means a 95% homework average helps far less than a 95% exam average. This calculator does the exact math your teacher does: it multiplies each category score by its weight, adds those weighted points together, and divides by the total weight. So 92% homework at 20% weight contributes 18.4 points, 88% quizzes at 30% contribute 26.4 points, and 79% exams at 50% contribute 39.5 points — an overall grade of 84.3%, a solid B.

Everything runs in your browser. Your grades never leave your device, and there's nothing to sign up for.

How to use it

  1. Edit the starter rows (Homework, Quizzes, Exams) or rename them to match your syllabus — Labs, Participation, Projects, Final, whatever your class uses.
  2. Enter your current percentage score for each category in the "Your %" column.
  3. Enter each category's weight from the syllabus in the "Weight %" column.
  4. Click "+ Add category" for extra rows, or the × button to remove one.
  5. Read your weighted grade, letter grade, and a per-category breakdown in the results — they update live as you type.

FAQ

What if my weights don't add up to 100%?
The calculator still works. It divides by whatever the weights sum to, which is exactly how mid-semester grades work when some categories haven't been graded yet. The results flag your total weight so you can spot a typo.
Can I use points instead of percentages?
Convert first: divide points earned by points possible and multiply by 100. If you scored 45 out of 50 on quizzes, enter 90 in the "Your %" column.
How do I find my category weights?
Check your syllabus or your school's online gradebook — weights are usually listed under "grading policy" or "grade breakdown." If nothing is listed, every assignment likely counts equally.
Does the letter grade match my school's scale?
It uses the common US scale (93+ is an A, 90–92.9 an A-, and so on). Schools vary, so treat the letter as a guide and the percentage as the real answer.