What is my weighted grade?
Enter each grade with the share of the course it is worth. The weighted grade updates as you type.
- Weighted grade
- 84.1%
Your weighted grade is 84.1% (B).
B
- F
- D-
- D
- D+
- C-
- C
- C+
- B-
- B
- B+
- A-
- A
- Letter grade
- B
- Weight graded
- 100%
- Points banked
- 84.1
Weighted grade: 84.1%. Your weighted grade is 84.1% (B).
How to calculate
Computes a weighted grade from grades and their percent weights, its letter grade, and the points banked toward the course grade so far.
Example with the default inputs (Grade 1 90%, Weight 1 15%, Grade 2 82%, Weight 2 20%, Grade 3 76%, Weight 3 25%, Grade 4 88%, Weight 4 40%): Your weighted grade is 84.1% (B).
Method: weighted grade = Σ(grade × weight) ÷ Σ(weight); points banked = Σ(grade × weight) ÷ 100.
- Weights are shares of the course in percent. When they add up to less than 100%, the weighted grade covers only the parts entered.
- A grade needs a weight. A weight with no grade is a part not graded yet: it is left out of the weighted grade and counts in the weight left.
- Letter grades follow the Tompkins Cortland Community College (SUNY) scale: A 93 and up, A- 90 to below 93, B+ 87, B 83, B- 80, C+ 77, C 73, C- 70, D+ 67, D 63, D- 60, F below 60.
Worked examples
Each example is checked against the calculator on every build.
- Grade 1 90%, Weight 1 15%, Grade 2 82%, Weight 2 20%, Grade 3 76%, Weight 3 25%, Grade 4 88%, Weight 4 40% gives Weighted grade 84.1%, Letter grade B, Weight graded 100%, Points banked 84.1.Source: hand calculation in content.mdx: 8,410 ÷ 100 = 84.1%
- Grade 1 95%, Weight 1 10%, Grade 2 80%, Weight 2 30%, Weight 3 60% gives Weighted grade 83.75%, Letter grade B, Weight graded 40%, Points banked 33.5, Weight left 60%.Source: hand calculation in content.mdx: 3,350 ÷ 40 = 83.75%; 3,350 ÷ 100 = 33.5 points
- Grade 1 90%, Weight 1 60%, Grade 2 70%, Weight 2 60% gives Weighted grade 80%, Letter grade B-, Weight graded 120%, Note The weights add up to more than 100%. Check them against the syllabus..Source: hand calculation in content.mdx: (90 × 60 + 70 × 60) ÷ 120 = 80%
- Grade 1 59.5%, Weight 1 50%, Grade 2 60.5%, Weight 2 50% gives Weighted grade 60%, Letter grade D-.Source: Tompkins Cortland Community College grading scale: D- is 60 to 62, F is 59 and below
How it works
Each row is one part of the course: an assignment or a category such as homework or exams. Give its grade in percent and its weight, the share of the course grade it is worth in percent.
weighted grade = Σ(grade × weight) ÷ Σ(weight)
points banked = Σ(grade × weight) ÷ 100
weight left = 100% − Σ(weight), shown when the weights of the graded parts add up to less than 100%.
The sums run over the graded parts: rows with both a grade and a weight.
The weighted grade gets a letter on the Tompkins Cortland Community College scale. A grade belongs to a letter when it is at or above that letter's lower limit and below the next letter's lower limit.
- A: 93 and up
- A-: 90 to below 93
- B+: 87 to below 90
- B: 83 to below 87
- B-: 80 to below 83
- C+: 77 to below 80
- C: 73 to below 77
- C-: 70 to below 73
- D+: 67 to below 70
- D: 63 to below 67
- D-: 60 to below 63
- F: below 60
Assumptions
- With no graded part (no row with both a grade and a weight) there is no answer.
- A grade needs a weight; a grade with no weight gives no answer until you add one. A weight with no grade is a part not graded yet: it is left out of the weighted grade and counts in the weight left.
- Grades from 0% to 200% are accepted, so extra credit counts. Weights are from 0.01% to 100%.
- When the weights add up to more than 100%, the page still divides by their sum and shows a note.
Worked examples by hand
A full course. Homework 90% (15%), quizzes 82% (20%), midterm 76% (25%), final exam 88% (40%).
- Products: 90 × 15 = 1,350; 82 × 20 = 1,640; 76 × 25 = 1,900; 88 × 40 = 3,520. Sum: 8,410.
- Weights: 15 + 20 + 25 + 40 = 100. Weighted grade: 8,410 ÷ 100 = 84.1%, a B. Points banked: 8,410 ÷ 100 = 84.1.
Part of the course graded. 95% on a part worth 10%, 80% on a part worth 30%, and a final exam worth 60% with no grade yet.
- Products: 950 + 2,400 = 3,350. Weights: 40. Weighted grade: 3,350 ÷ 40 = 83.75%, a B.
- Points banked: 3,350 ÷ 100 = 33.5. Weight left: 100 − 40 = 60%.
Weights over 100%. 90% and 70%, each worth 60%: (5,400 + 4,200) ÷ 120 = 80%, a B-, with a note that the weights add up to 120%.
A letter boundary. 59.5% and 60.5%, each worth 50%: (2,975 + 3,025) ÷ 100 = 60%, a D-, because a D- starts at 60%.
Other questions people ask
How do you calculate a weighted grade?
Multiply each grade by its weight, add the products, and divide by the sum of the weights. Homework 90% (15%), quizzes 82% (20%), a midterm 76% (25%), and a final 88% (40%) give (1,350 + 1,640 + 1,900 + 3,520) ÷ 100 = 84.1%.
What if my weights do not add up to 100%?
The weighted grade divides by the weights you entered, so it is your average over the graded parts only. If 40% of the course is graded, the weighted grade is your grade on that 40%. The page also shows the weight left, 100% minus what you entered.
What are points banked?
Points banked are Σ(grade × weight) ÷ 100: the points you have earned toward a course grade out of 100. With 95% on a part worth 10% and 80% on a part worth 30%, you have banked 9.5 + 24 = 33.5 points. It equals the course grade you would get if every part not entered scored 0.
How is a weighted grade different from a plain average?
A plain average counts every grade the same. A weighted grade lets a final worth 40% count more than homework worth 15%. With 90% on homework and 70% on the final, the plain average is 80%, but with weights of 15% and 40% the weighted grade is (90 × 15 + 70 × 40) ÷ 55 = 75.45%.
What if the weights add up to more than 100%?
The page still divides by the sum, so the weighted grade is right for the numbers you entered, but it shows a note. Weights from a syllabus should add up to 100%, so a total above it usually means a typo.
Which letter scale does this use?
The Tompkins Cortland Community College (SUNY) scale: A 93 and up, A- 90 to 92, B+ 87 to 89, B 83 to 86, B- 80 to 82, C+ 77 to 79, C 73 to 76, C- 70 to 72, D+ 67 to 69, D 63 to 66, D- 60 to 62, F 59 and below. Your school may use different cutoffs.