How do I calculate a weighted course grade?

Multiply each assignment or category percentage by its assigned weight (for example, 85% on a midterm worth 20% = 17 weighted points). Add all the weighted points together. If your completed weights already equal 100%, that sum is your final grade. If they total less than 100%, divide the sum by the total completed weight to get your accurate current standing.

What happens if my syllabus weights do not add up to 100%?

During the semester, you rarely have 100% of assignments completed. Our grade calculator automatically normalizes your grade by dividing the sum of your weighted scores by the sum of completed weights. This gives your true current standing rather than penalizing you for future assignments you haven't taken yet.

What score do I need on my final exam to pass or get an A?

Use the formula: Required Score = [Target Grade − (Current Grade × (1 − Final Weight))] ÷ Final Weight. For example, if you have an 82% and want a 90% with a 25% final, you need: [90 − (82 × 0.75)] ÷ 0.25 = 114%. Our Final Exam tab calculates this instantly and tells you if the target is realistic.

What is a 70 percent grade?

On the standard US letter grading scale, 70% falls at the bottom of the C− range (70–72%). A C− carries a GPA value of 1.7 on the 4.0 scale. However, grading scales vary by institution, so always check your school's specific cutoff policy.

How do I convert a test score to a percentage?

Divide the number of points you earned by the total possible points, then multiply by 100. For example, 38 out of 50 = (38 ÷ 50) × 100 = 76%. Our Test Grader tool calculates this instantly and shows the corresponding letter grade.

Can I still pass my class if I fail the final exam?

It depends on your current grade and how much the final is worth. If you have a strong enough grade going in and the final is a small percentage (such as 15–20%), you may still pass with a low final score. Use our Final Exam Needed tab to enter your current grade, target grade, and final weight to find out instantly.

How does dropping the lowest grade affect my average?

Dropping the lowest grade removes your worst-performing assignment from the total points calculation. This raises your average only if the dropped score was below your current average. Our Points-Based calculator lets you drop 1, 2, or 3 lowest scores and shows the before-and-after impact on your grade.

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Online Grade Calculator

Q: Does an ungraded or blank assignment count as a zero?

No. In our calculator, blank or unentered assignments are excluded from the completed weight so you see your true current average. If you actually missed a deadline and received a zero, enter 0 as the score so it accurately impacts your standing.

Calculate your current class grade with Weighted Grade Calculator with Weights or total points. Predict the exact score you need on your final exam to pass or earn an A. Step-by-step formula breakdowns included.

Assignment / Category Grade (%) Weight (%)

Current Standing

--%

Completed Weight --%

GPA Value --

Feasibility --

Calculation Steps

Enter your assignments to view the step-by-step mathematical breakdown.

How to Calculate My Grade (and What Grade You Need) (Step-by-Step)

Calculating your class grade depends on whether your instructor uses Weighted Grade Calculator with Weights (percentages assigned to homework, quizzes, midterms, and the final exam) or a total points system (where every assignment earns raw points out of a possible maximum). Many students struggle when their syllabus weights don't add up to 100% or when assignments are still in progress — our calculator handles both situations automatically.

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Weighted Grade Calculator

Your syllabus assigns each category a specific weight (for example, Homework 20%, Midterm 25%, Final 30%). Each score is multiplied by its weight, and the results are summed and normalized across completed coursework. Try the dedicated weighted calculator →

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Points-Based Grading

Every assignment has points earned and points possible. Your grade is simply total earned ÷ total possible × 100. Our calculator also supports dropping lowest scores and adding extra credit points to see how they change your standing.

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Final Exam Score Predictor

Find out exactly what grade you need on your final to pass, earn a B, or lock in an A. Includes instant feasibility badges so you know if your target is realistic or requires extra credit. Try the final exam calculator →

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Test Score to Percentage

Quickly convert any test score to a percentage and letter grade. Score 38 out of 50? That's 76%, a C. Our test grader generates a complete grading chart for any number of questions. Try the test grade calculator →

Weighted vs. Points-Based Grading: What's the Difference?

These are the two most common grading systems used in high school and college courses. Understanding which one your class uses is the first step to accurately calculating your grade.

Weighted Grading

Each grading category (homework, quizzes, exams) is assigned a percentage weight from your syllabus. A 10-point quiz in a 30% category carries vastly different significance than a 10-point homework assignment in a 5% category. The formula is:

Grade = Σ(Score × Weight) ÷ Σ(Completed Weights)

Points-Based Grading

Every assignment has a fixed point value. A 50-point midterm and a 10-point quiz are added together directly. Your grade is simply total points earned divided by total points possible. The formula is:

Grade = (Total Earned ÷ Total Possible) × 100

Not sure which one your class uses? Check your syllabus. If it lists categories like "Homework: 20%, Tests: 40%, Final: 25%," you're in a weighted system. If it lists individual assignment point values (like "Quiz 1: 15 points, Midterm: 100 points"), you're in a points-based system.

Standard US Letter Grade Scale

This calculator uses the common US letter grading scale by default. Note that grading cutoffs vary between schools — always check your institution's specific policy. Here is the standard reference used in most US high schools and universities:

Letter Grade	Percentage Range	GPA Value
A+	97–100%	4.0
A	93–96%	4.0
A−	90–92%	3.7
B+	87–89%	3.3
B	83–86%	3.0
B−	80–82%	2.7
C+	77–79%	2.3
C	73–76%	2.0
C−	70–72%	1.7
D+	67–69%	1.3
D	63–66%	1.0
D−	60–62%	0.7
F	Below 60%	0.0

Grade Calculator: Frequently Asked Questions

To calculate a weighted grade, multiply each assignment score (as a percentage) by its category weight. For example, an 85% on a midterm worth 20% contributes 85 × 0.20 = 17 weighted points. Sum all weighted points together. If your completed weights total less than 100%, divide the sum by the total completed weight percentage to get your accurate current standing rather than penalizing yourself for work not yet assigned.

During the semester, you rarely have 100% of assignments completed. Our grade calculator normalizes your grade by dividing the sum of weighted scores by the sum of completed weights. This prevents uncompleted future assignments from artificially dropping your grade. For example, if you've completed categories totaling 70% of your grade, we divide your weighted sum by 70 — not 100 — to give your true current average.

The formula is: Final Score Needed = [Target Grade − (Current Grade × (1 − Final Weight))] ÷ Final Weight. For example, if you have an 85%, want a 90%, and the final is worth 20%: [90 − (85 × 0.80)] ÷ 0.20 = 110%. Since that exceeds 100%, you would need extra credit to reach your target.

No. In our calculator, blank or unentered assignments are ignored from the completed weight so you see your true current average. If you actually missed a deadline and received a zero, you should enter 0 as your score so it accurately impacts your standing. The distinction between "not yet graded" and "scored zero" is one of the most common grade calculation mistakes students make.

On the standard US letter grading scale, 70% falls at the bottom of the C− range (70–72%) with a GPA value of 1.7. In most US high schools and universities, 70% is considered the minimum passing grade, though some institutions set the passing threshold at 60% or 65%. Always check your specific school's grading policy, as cutoff percentages vary by institution.

Divide the points you earned by the total points possible, then multiply by 100. For example: 38 out of 50 = (38 ÷ 50) × 100 = 76%. To find the letter grade, compare the percentage to your school's grading scale (76% is typically a C on the standard US scale). Our Test Grade Calculator does this instantly and generates a full grading chart.

It depends on your current grade and how much the final exam is worth. If you have a strong grade going in (for example, 88%) and the final is only worth 20%, scoring a 0% on the final would give you 88 × 0.80 = 70.4% — still a C−. Use our Final Exam Calculator to enter your exact numbers and see the result instantly with a feasibility badge.

Dropping the lowest grade removes your worst-performing assignment from the total calculation. This only helps your average if the dropped score was below your current average. In our Points-Based calculator, you can select to drop 1, 2, or 3 lowest scores and immediately see the impact. Note: dropping a score also removes its "possible points" from the denominator, which is why even a low-but-not-zero score might not raise your grade as much as expected.