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Weighted Grade Calculator

Use this weighted grade calculator to combine category scores and weights into an estimated course grade.

Method and assumptions documentedFree toolSource note included

Live calculator

Weighted grade

Weighted grade89.8%

Based on 100% total entered weight.

Weighted points89.8

Weighted contribution after multiplying each score by its weight.

Grade breakdown
CategoryScoreWeightContribution
Assignments92%30%27.6 pts
Quizzes84%15%12.6 pts
Exams88%35%30.8 pts
Project or final94%20%18.8 pts

Quick answer

Weighted Grade Calculator: what it calculates

Weighted Grade Calculator calculates weighted grade from category scores and category weights. The visible formula is Weighted grade = sum(category score x category weight) / sum(category weights).

ResultWeighted grade
InputsCategory scores, Category weights
FormulaWeighted grade formula

Formula

Weighted grade formula

Weighted grade = sum(category score x category weight) / sum(category weights)

Enter each category score and weight as percentages. The calculator normalizes when weights do not add to exactly 100%.

How to use

Steps

  1. Enter the current score for each grading category.
  2. Enter the syllabus weight for that category.
  3. Leave unused categories at zero weight.
  4. Review the weighted grade and category contribution table.

Example

Sample calculation

Assignments92% x 30%
Quizzes84% x 15%
Exams88% x 35%
Weighted grade89.4%

Calculator use

Best for

  • Use this weighted grade calculator to combine category scores and weights into an estimated course grade.
  • Checking calendar, work-hour, school, deadline, age, or duration math before copying the result elsewhere.
  • Comparing inclusive versus exclusive dates, breaks, grading weights, or time spans with the assumptions visible.
  • Doing a quick schedule or school planning check without opening a spreadsheet.

Before relying on it

Check first

  • Mixing inclusive and exclusive date counting, time zones, overnight shifts, unpaid breaks, holidays, or school-specific grading rules.
  • Rounding time or grades too early and then using the rounded result in another calculation.
  • Treating a planning result as payroll, HR, transcript, legal deadline, or official school policy.

Details

What to know before using the result

Weight totalNormalizes entered weights

If the weights add to 80 or 120 instead of 100, the calculator divides by the total entered weight.

Category scoreUse each category average

Use the gradebook average for assignments, quizzes, exams, or projects rather than adding individual assignment points here.

Policy checkSyllabus comes first

Dropped grades, late penalties, curves, and minimum-exam policies can change the official result.

Source notes

References used for this calculator

Cornell Center for Teaching InnovationDiscusses course assessment methods and grade-calculation systems for summative assessment.UCLA RegistrarShows institutional grade reporting and grade-point calculation examples.

Benchmarks

How to read the result

Weights total 100%: Standard setup.

Matches many syllabus grade breakdowns.

Weights below 100%: Partial grade.

Useful when only graded categories so far are entered.

Weights above 100%: Check inputs.

A total over 100 can be valid in some systems, but often signals a duplicate category.

Calculator accuracy

Methodology and assumptions

Formula

Weighted grade = sum(category score x category weight) / sum(category weights)

Inputs used

Category scores, Category weights

Limitations

Everyday results are quick planning checks. Unit choices, rounding, labels, measurements, local prices, and real-world constraints can change the final decision.

Review record

Catalog QA baseline on June 6, 2026. This date marks the catalog-wide automated and editorial QA baseline, not a tool-specific expert review.

Cite this page

Toolkit Shelf. Weighted Grade Calculator. https://toolkitshelf.com/tools/weighted-grade-calculator

FAQ

Common questions

How do I calculate a weighted grade?

Multiply each category score by its category weight, add those weighted points, then divide by the total weight entered.

Do weights need to add to 100?

They usually should match the syllabus, but this calculator normalizes by the total entered weight so partial category setups still work.

Can this handle extra credit?

You can include extra credit by raising the relevant category score or adding it according to your class policy.