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Everyday & lifestyle·Academic

Weighted Grade Calculator

Calculate your weighted course grade instantly. Enter each assignment category's score and weight — works mid-semester even if not all grades are in yet.

Input

Result

Enter a value for grades (one per line: score, weight) to see your result.

How it works

Calculates your weighted course grade by multiplying each assignment category's score by its percentage weight and dividing by the total weight entered.

Formula

Weighted Average = Σ(score × weight) ÷ Σ(weight)

score
Your score for an assignment category (0–100%)
weight
Percentage weight of that category in the final grade

Step by step

  1. 01Enter each assignment category on a new line in the format: score, weight. For example, '85, 30' means 85% on a category worth 30% of your grade.
  2. 02Leave out categories you haven't received a grade for yet — they won't be counted in the average.
  3. 03The calculator multiplies each score by its weight, sums the products, and divides by the total weight entered.
  4. 04Review the breakdown to see each category's contribution to your final grade.

Examples

Four categories totalling 100%

(85×20 + 78×30 + 92×25 + 88×25) / 100 = 8505 / 100 = 85.05%

Inputs

Grades (one per line: score, weight):
85, 20 78, 30 92, 25 88, 25

Result

Weighted Average:
85.05%

Mid-semester — only 70% of grades recorded

Only 70% of categories are in. (90×20 + 82×30 + 75×20) / 70 = 5800 / 70 ≈ 82.86%

Inputs

Grades (one per line: score, weight):
90, 20 82, 30 75, 20

Result

Weighted Average:
82.86%
Total Weight Entered:
70%
Note: Weights do not need to add up to 100% — the calculator divides by whatever total weight you enter. Each score must be between 0 and 100. Lines with invalid numbers are skipped.

Frequently asked questions

Do my weights need to add up to 100%?

No. If you haven't received all your grades yet, enter only the categories you have. The calculator divides by the total weight you enter, so you get your current average across completed work.

How do I enter a category that has multiple assignments?

First calculate your average across all assignments in that category, then enter it as a single line. For example, if your homework average is 88% and homework is worth 20%, enter: 88, 20.

What letter grade scale does this use?

The standard US scale: A ≥ 93%, A− ≥ 90%, B+ ≥ 87%, B ≥ 83%, B− ≥ 80%, C+ ≥ 77%, C ≥ 73%, C− ≥ 70%, D+ ≥ 67%, D ≥ 63%, D− ≥ 60%, F < 60%.