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Weighted Grade Calculator

Weighted Grade Calculator is part of Toolspire and is ready as soon as this page loads. One row per assessment: score, then weight. A final worth three times a quiz must not be averaged as if it were the same size.

Runs in this tabFreeNo account

On this page

What you can do here

One assessment per line

Score first, weight second, separated by a comma or a space.

Relative weights

Weights of 1 and 3 behave like 25% and 75%. You do not have to make them add to 100.

The weight total is shown

The detail reports the sum of the weights so a missing row is easier to spot.

The sequence

How to use the Weighted Grade Calculator

  1. 1

    Put the score before the weight

    80, 1 means a score of 80 with weight 1. Swapping the columns changes the grade.

  2. 2

    Use the syllabus weights

    If quizzes are 20% and the midterm is 30%, those percents are valid weights. So are 2 and 3.

  3. 3

    Check 80 and 90

    The sample lines should read 87.5%. If they do not, a column is reversed.

Worth knowing

  • Weighted Grade Calculator on Toolspire: each line is score × weight. The grade is the sum of those products divided by the sum of the weights.
  • Weights can be percents or any relative size. 80 with weight 1 and 90 with weight 3 is 87.5%.
  • A weight of zero adds nothing. A negative weight is rejected.
  • This averages marks you already have. It does not solve for a future final. That is the final-grade page.

Weights do not need to sum to 100

Dividing by the total weight normalises the rows. A quiz weight of 1 and a final weight of 3 is the same average as weights 25 and 75. What matters is the ratio. A plain mean of the scores would treat the quiz as equal to the final, which is the mistake this page exists to avoid. Unmarked work does not belong in the list; use the final-grade calculator to solve for a score you do not have yet.

FAQ

Questions about Weighted Grade Calculator

Where does Weighted Grade Calculator run?

Weighted Grade Calculator runs in this tab on Toolspire. What you type or drop in is not sent to us and is not stored on a server.

Do the weights have to add up to 100?

No. They are relative. 1 and 3 give the same result as 25 and 75.

What goes on each line?

The score, then the weight. 90, 3 is a score of 90 with weight 3.

How do I include a test I have not taken?

Leave it out. This page only averages rows you type. The final-grade calculator solves for a missing score.

What is the sample answer?

80 at weight 1 and 90 at weight 3 is (80 + 270) / 4 = 87.5%.

Keep going

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