How is a weighted course grade calculated?

Weighted grade = Sum of (item score x item weight) / Sum of item weights. Each graded item contributes its score in proportion to its weight, so higher-weighted items count more toward the overall percentage.

How is the required final exam score calculated?

Required final score = (Target grade - Current weighted score) / (Final exam weight / 100). If the result is above 100%, the target cannot be reached even with a perfect final exam; if it is at or below 0%, the target is already secured.

How many questions can I miss and still hit my target score?

The calculator finds the minimum correct answers needed as ceil(Target % / 100 x Total questions), then subtracts that from the total to give the maximum number you can miss and still reach the target, assuming every question is worth the same amount.

Can I change the letter-grade cutoffs used?

Yes. The letter-grade scale is a user-editable table - add, remove, or change any cutoff percentage and label. It labels percentage results in the modes that display letter grades; Attendance % displays an attendance rate without a letter grade. The default is a common A/B/C/D/F 90-80-70-60 scale, which you should replace if your school's scale differs.

Does this tool know my school's or instructor's actual grading policy?

No. It does not access any school record, gradebook, or institutional grading system, and it does not know or apply any specific school, course, or instructor's curve, extra credit, or rounding rule. You supply the numbers and the letter-grade cutoffs; the calculator only does the arithmetic.

Do item weights need to add up to 100%?

For the Final grade target mode, yes - all item weights plus the final exam weight must sum to 100%, since together they represent the whole course grade. The Weighted course grade mode normalizes by the sum of weights entered, so it works even if your weights do not total 100%.

Grade Calculator: Weighted Grades and Final Targets

How to use the Grade Calculator

Enter the numbers for a course, test, question set, or attendance record, then choose a mode. The Grade Calculator shows the calculation, its assumptions, and the result. Letter-grade settings apply to the percentage results that display a letter.

Edit Letter-grade settings if your school uses different cutoffs. Use Add row or Reset to default scale.
Select Weighted course grade, Final grade target, Test score %, Missed questions, or Attendance %.
Enter the values requested by that mode, then choose Calculate.
Read Result, Formula used, and the assumptions table.
Choose Copy result or Download result (.txt) for a text copy.

How to calculate a weighted grade

Choose Weighted course grade and enter Item name, Score (%), and Weight for each graded item. The formula divides the sum of score times weight by the sum of weights, so the weights do not need to total 100. Empty rows are skipped. A partly filled row needs a score and a weight; an empty name becomes Item 1, Item 2, and so on.

How to use a final grade calculator

Use Final grade target with graded items, Final exam weight (%), and Target overall grade (%). Item weights plus the final exam weight must total 100%. The result shows the current weighted score and the required final exam score. A required score above 100% is marked Not achievable. A required score at or below zero marks the target as already secured.

Test score calculator and missed questions

Test score % divides Points earned by Points possible, then reports the percentage, points missed, and letter grade:

Points earned: 42
Points possible: 50
Test score percentage: 84.00%
Letter grade: B

Missed questions uses Total questions and Target score (%). Add Missed so far (optional) to see the current percentage and how many more questions you can miss. The calculation treats every question as equal in value.

Total questions: 40
Target score: 80%
Minimum correct needed: 32
Maximum questions you can miss: 8

How to calculate attendance percentage

Attendance % divides Sessions attended by Total sessions so far and reports sessions missed. Enter both Target attendance % (optional) and Remaining scheduled sessions (optional) to calculate the remaining sessions you must attend and allowable absences. If either field is blank, the result shows the current rate only.

What the letter-grade settings change

The default table sets A at 90%, B at 80%, C at 70%, D at 60%, and F at 0%. Change a label or minimum percentage, add or remove rows, or choose Reset to default scale. The scale labels percentage results. Attendance % reports an attendance rate without a letter grade.

What the Grade Calculator does not apply

Scores must be 0 or greater, weights must be greater than 0, and Points earned cannot exceed Points possible. Total questions, Missed so far (optional), and session counts must be whole numbers. Target percentages accept 0 through 100. The calculator does not apply curves, extra credit, dropped-score rules, or instructor rounding, and it does not access school records or gradebooks. It calculates in the browser from the values you enter.

Where this comes up

Enter quiz and exam rows to check a course grade.
Enter current scores and a target to calculate a required final score.
Enter question totals and a target percentage to set a missed count.
Enter attended and remaining sessions to check attendance.

When another education calculator fits better

The education calculators category includes grade, GPA, attendance, and study planning tools. Choose the Weighted Grade Calculator for assignment scores, weights, and each contribution. Choose the Final Grade Calculator for a final exam target. Choose the Attendance Percentage Calculator for attendance rate and allowable future absences.

Frequently asked questions

How do I calculate my weighted grade?

Use Weighted course grade, enter each item's Score (%) and Weight, and choose Calculate. The result divides the weighted score by total weight.

What final exam score do I need for my target grade?

Use Final grade target with graded items, Final exam weight (%), and Target overall grade (%). Item weights plus the final exam weight must total 100%.

How do I calculate a test score percentage?

Enter Points earned and Points possible in Test score %. The result reports the percentage, points missed, and letter grade.

How many questions can I miss and keep my target score?

Enter Total questions and Target score (%). The calculator rounds required correct answers up, then subtracts that count from the total. Each question has equal value.

How do I calculate my attendance percentage?

Enter Sessions attended and Total sessions so far in Attendance %. Add both optional projection values to calculate allowable absences.

Grade Calculator

Result

Formula used