Weighted Grade Calculator Guide

What This Calculator Does

Combine assessment scores and weights to find a course weighted grade. The result separates the average of completed work from earned overall percentage points, remaining weight and the possible final range. An optional target shows the average needed on the remaining work. Use the test grade calculator for one test, or the final exam calculator when only one exam remains.

When to Use It

• Homework, quizzes, projects and exams carry different weights.
• You want a current average without treating ungraded assignments as zeros.
• Your course uses relative point weights and you need a target-grade scenario.

Inputs Explained

Choose percentage weights or point weights. Scores are percentages from 0 to 100 in both modes. For example, 18 earned out of 20 becomes 90 in the score field. Percentage mode uses a fixed full-course budget of 100. Point mode requires the full course weight budget: for a 200-point course, enter 200 and use assessment point values as weights. Point mode does not take earned points directly as scores.

Each weight must be positive. Enter up to 50 assessments. The point budget cannot exceed 1,000,000; individual weights and their sum cannot exceed the full budget. A blank score means ungraded. An explicit 0 is a completed zero. Any unassigned budget also remains ungraded, so you need not create placeholder assignments to fill the budget.

The optional target is a 0–100 overall percentage. Editing a field clears the old result; calculate again for an updated result. Inputs stay in component state and are not stored or put in URLs.

How the Calculation Works

Let W be the full-course weight budget, with completed scores sᵢ and weights wᵢ:

• Completed average = Σ(sᵢwᵢ) / Σwᵢ.
• Earned overall percentage points E = Σ(sᵢwᵢ) / W.
• Remaining weight R = W − completed weight.
• Possible overall grade ranges from E to E + 100R/W.
• Required remaining average for target T = (T − E)/(R/W).

The target solver shares the final-grade calculator's weighted-average logic. With no remaining weight, it compares the existing grade with the target instead of dividing by zero. With no completed work, the completed average is a dash and the required remaining average equals the target.

Example

Homework is 80% at weight 30, quizzes 90% at weight 30, and an ungraded final has weight 40. The completed average is (80×30 + 90×30)/60 = 85%. Earned overall points are 51; 40% remains, giving a final range of 51–91%. A target of 85% requires (85−51)/0.4 = 85% on the remaining work.

In point mode, a budget of 200 with weights 60, 60 and 80 produces the same answer. Changing the blank final score to 0 completes that assessment: the course average becomes 51% with no remaining weight.

How to Understand the Result

Completed average and earned overall points have different denominators. The first describes assessed performance; the second describes its contribution to the final course grade. A required remaining average above 100% is unattainable in this model. A value at or below 0% means the target is already secured.

Common Mistakes

• Entering zero for ungraded work.
• Entering earned points in the point-mode percentage score field.
• Exceeding 100 percentage weight or the full point budget.
• Treating a percentage estimate as an institution's grading policy.

FAQ

Do blank grades count as zero?

Grades use 0–100 in both modes. Blank means ungraded; 0 means a completed zero. Unassigned budget also remains ungraded.

What is the average shown?

Only completed work is included in the weighted average. Earned overall points use the full course budget.

Does this apply my school policy?

Up to 50 assessments. Scores use 0–100; percentage weights total at most 100. Point budgets are at most 1,000,000. School rounding, curves and extra credit are not modeled.

Notes

Up to 50 assessments. Scores use 0–100; percentage weights total at most 100. Point budgets are at most 1,000,000. School rounding, curves and extra credit are not modeled.