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Grade
Calculator

Calculate your weighted course grade, semester GPA, or find out exactly what score you need on your final exam to hit your target grade. Works with percentages, points, and letter grades.

Assignments & Categories Weight must total 100%
Category Score % Weight %
Total weight: 0%
Your Current Grade
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060708090100
Add your assignments above
Letter Grade Scale

How weighted grades work

A weighted grade gives different categories different levels of importance. If your exams are worth 40% and homework is 20%, a 70% on exams hurts your grade twice as much as a 70% on homework. To calculate: multiply each score by its weight (as a decimal), then sum all results. A 90% in a 40-weight category contributes 90 × 0.4 = 36 points toward your final grade.

The 4.0 GPA scale

Most US colleges use a 4.0 scale: A = 4.0, A− = 3.7, B+ = 3.3, B = 3.0, B− = 2.7, C+ = 2.3, C = 2.0, C− = 1.7, D+ = 1.3, D = 1.0, F = 0.0. GPA is credit-weighted — a 3-credit A contributes more than a 1-credit A. Some schools use a 4.33 scale where A+ = 4.33. Always check your school's specific scale as they vary.

What do I need on my final? — the formula

The formula is: Required = (Target − Current × (1 − Final Weight)) ÷ Final Weight. For example, if your current grade is 78%, you want a 73% (C), and the final is worth 30%: Required = (73 − 78 × 0.70) ÷ 0.30 = (73 − 54.6) ÷ 0.30 = 61.3%. Needing over 100% means the target is mathematically impossible given your current standing.

What GPA do I need for grad school?

Most graduate programs want a 3.0 minimum, competitive programs typically expect 3.5+, and top-tier programs (law, medicine, PhD) often expect 3.7+. However, GPA is weighed alongside other factors — research experience, letters of recommendation, personal statement, and standardized test scores. A strong upward GPA trend (improving each year) can partially offset a lower cumulative GPA.

Frequently Asked Questions
What is a weighted grade calculator? ▾
A weighted grade calculator computes your overall grade by accounting for how much each assignment category (homework, quizzes, midterm, final) counts toward your total grade. Unlike a simple average, it ensures that a category worth 40% of your grade has four times the impact of one worth 10%. Enter each category's score and weight, and the calculator does the rest.
What grade do I need on my final to get a B? ▾
It depends on your current grade and the final's weight. Use the "What Do I Need?" tab: enter your current percentage, set the final weight (often 20–40%), and select B (83%) as your target. The calculator shows the exact score required. If the result is over 100%, you cannot mathematically achieve a B — but you may still be able to get a B− or C+ with a realistic score.
How is GPA calculated? ▾
GPA = Sum of (grade points × credit hours) ÷ Total credit hours. For example: English 3 credits A (4.0) = 12 quality points; Math 4 credits B+ (3.3) = 13.2 quality points; History 3 credits A− (3.7) = 11.1 quality points. Total: 36.3 quality points ÷ 10 credits = 3.63 GPA. The GPA calculator above handles this automatically for all your courses.
What's the difference between GPA and weighted GPA? ▾
Standard GPA measures your academic performance on a 4.0 scale where A = 4.0 in any course. Weighted GPA (used by many high schools) gives extra points for AP, IB, or honors courses — typically A = 5.0 in AP/IB classes, 4.5 in honors. College admissions typically recalculate your GPA on an unweighted basis for fair comparison. The GPA tab in this calculator uses the standard 4.0 unweighted scale.
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How to Use the Grade Calculator

Calculate your current weighted grade and the minimum score needed on your final exam.

01
Add your assignments
Enter each assignment, test, or exam with its score and maximum possible points. Give each a descriptive name.
02
Set category weights
If your course uses weighted categories (e.g. 'Tests = 40%, Homework = 30%, Final = 30%'), group assignments and set each category's weight percentage.
03
See your current grade
Your weighted grade appears instantly and updates as you add or edit assignments. The letter grade is shown alongside the percentage.
04
Calculate what you need
Enter the weight of your final exam and your desired overall grade. The calculator tells you the minimum score you need on the final to achieve that grade.
05
Run what-if scenarios
Change target grades to see how your required final exam score changes. Sometimes a lower target is more realistic and still a great outcome.
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💡 If you need more than 95% on the final to pass, talk to your instructor now — not after the exam. There may be extra credit opportunities or alternative arrangements.