Grade Calculator

Weighted Grade Calculator

Enter up to four category percentages and their course weights to calculate the contribution already earned toward a 100-point course grade.

Calculate a grade from category scores and weights

Weighted grade calculation formula

Current contribution = sum of category grade x category weight / 100. Graded-category average = current contribution / entered weight x 100. Remaining weight = 100 - entered weight.

Current contribution

Adds each category's percentage of the final 100-point course grade.

Graded-category average

Normalizes the entered categories to their combined weight.

Remaining weight

Shows the unentered share of the course after listed categories.

How to calculate a weighted grade

Weighted grading gives categories different influence over a course total. Enter each category percentage, such as homework or exams, and the percentage of the full course assigned to that category. The calculator multiplies each grade by its syllabus weight and adds those contributions. A 90% exam category worth 40% contributes 36 points toward a 100-point course total.

The current contribution is deliberately different from the graded-category average. Current contribution answers how many points toward the final course grade have already been earned. The graded-category average shows performance only across the categories entered so far. Keeping both visible prevents a partial gradebook from being mistaken for a complete course grade.

Confirm that category weights total 100% in the official syllabus. Some gradebooks apply dropped assignments, replacement exams, unequal individual assignments, curves, late penalties, or unposted work. This calculator does not predict a final-exam requirement; use the Final Grade Calculator when you know the final weight and target course grade.

Weighted grade calculator inputs

InputWhat it meansPlanning note
Category gradePercentage earned within one course categoryUse the official category percentage, not a letter alone.
Category weightThat category's share of the full course gradeUse the syllabus weight, not an assumed equal split.
Current contributionPoints already earned toward the full course totalIt can be lower than the category average before all categories are graded.
Remaining weightPortion of the course not represented by entered categoriesEnter future categories to reduce it toward zero.

Common use cases

Syllabus planning

Translate category weights into their impact on the full course grade.

Partial-term review

Separate current course contribution from the average of completed categories.

Scenario comparison

Compare how a changed exam or project grade affects the course total.

Frequently asked questions

What is the difference between a weighted grade and an average?

A weighted grade gives categories different influence; an ordinary average treats each value equally.

Do my weights need to add to 100%?

For a complete course calculation they normally should. This page also shows the remaining weight when the entered categories are partial.

Why is my current contribution lower than my category average?

The contribution is measured against the full 100-point course while some category weight may remain ungraded.

Can I use this for a final exam target?

Use the Final Grade Calculator when you need the score required on a final to reach a target course grade.

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Last reviewed: October 6, 2026. Results are estimates from the entered values. Schools and instructors can use different rounding, weighting, dropped-work, curves, late-work, and extra-credit rules; confirm the official syllabus and gradebook.

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