Question 1

How do I calculate my test grade percentage?

Accepted Answer

Divide your correct answers by the total questions and multiply by 100. Formula: Grade % = (Correct / Total) × 100. Example: 42 correct out of 50 questions = (42/50) × 100 = 84%. In the US grading scale, 84% = B (3.0 GPA). If you miss the cut for the next grade, you can also work backwards: to earn an 90% (A-) on a 50-question test, you need at least 45 correct.

Question 2

How do I calculate my final grade with weighted assignments?

Accepted Answer

Multiply each score by its weight, sum them, then divide by total weight. Formula: Final Grade = Σ(Score × Weight) / Σ(Weight). Example: Homework 80% (worth 20%), Midterm 75% (worth 30%), Final 88% (worth 50%): = (80×0.20 + 75×0.30 + 88×0.50) = 16 + 22.5 + 44 = 82.5%. Weighted final grade = 82.5% = B-.

Question 3

What grade do I need on my final exam to pass the course?

Accepted Answer

Formula: Required Final Grade = (Target Course Grade − Current Weighted Grade) / Final Exam Weight. Example: You need 70% in the course. You currently have 65% and the final is worth 40%: Required = (70 − 65×0.60) / 0.40 = (70 − 39) / 0.40 = 31 / 0.40 = 77.5%. You need at least 77.5% on the final to pass the course.

Question 4

How is GPA calculated from letter grades?

Accepted Answer

GPA = Sum of (Grade Points × Credit Hours) / Total Credit Hours. Grade points: A/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 = 1.0, F = 0.0. Example: 3 credits of A (4.0) + 3 credits of B+ (3.3) + 4 credits of C (2.0) = (12 + 9.9 + 8) / 10 = 2.99 GPA.

Question 5

How many questions can I miss and still get an A?

Accepted Answer

It depends on how many questions are on the test. For an A (93%): On a 20-question test — miss at most 1 question. On a 50-question test — miss at most 3 questions. On a 100-question test — miss at most 7 questions. For a B (83%): miss 3, 8, or 17 questions on 20, 50, or 100-question tests respectively. The formula is: Max Missed = Total Questions × (1 − Min Grade/100).

Letter	Percentage	GPA	Description
A+	97-100%	4.0	Exceptional
A	93-96%	4.0	Excellent
A-	90-92%	3.7	Very Good
B+	87-89%	3.3	Good
B	83-86%	3.0	Above Average
B-	80-82%	2.7	Satisfactory
C+	77-79%	2.3	Average
C	73-76%	2.0	Acceptable
C-	70-72%	1.7	Below Average
D	60-69%	1.0	Poor
F	0-59%	0.0	Failing

Total Questions	A (93%+)	B (83%+)	C (73%+)	D (60%+)
10 questions	miss ≤0	miss ≤1	miss ≤2	miss ≤3
15 questions	miss ≤1	miss ≤2	miss ≤4	miss ≤5
20 questions	miss ≤1	miss ≤3	miss ≤5	miss ≤7
25 questions	miss ≤1	miss ≤4	miss ≤6	miss ≤9
30 questions	miss ≤2	miss ≤5	miss ≤8	miss ≤11
40 questions	miss ≤2	miss ≤6	miss ≤10	miss ≤15
50 questions	miss ≤3	miss ≤8	miss ≤13	miss ≤19
75 questions	miss ≤5	miss ≤12	miss ≤20	miss ≤29
100 questions	miss ≤7	miss ≤17	miss ≤27	miss ≤40

Component	Weight	Your Score	Contribution
Homework / Participation	20%	85%	17.0
Midterm Exam	30%	76%	22.8
Final Exam	50%	88%	44.0
Final Grade	100%		83.8% = B

%	US Letter	UK Class	Australia	Germany	France
90–100%	A / A+	1st Class	HD (85+)	1 (sehr gut)	16–20/20
80–89%	B+	2:1	D (75–84)	2 (gut)	14–15/20
70–79%	B / B-	2:2	C (65–74)	3 (befriedigend)	12–13/20
60–69%	C	3rd Class	P (50–64)	4 (ausreichend)	10–11/20
50–59%	D	Pass/Fail	P border	5 (mangelhaft)	7–9/20
<50%	F	Fail	F (Fail)	6 (ungenügend)	<7/20

Test Grade Calculator

Results

Grade Scale

Grade Calculation Formula

How Many Questions Can You Miss and Still Get Each Grade?

How to Calculate Final Grade with Weighted Assignments

Example: College Course Breakdown

What Grade Do I Need on My Final Exam?

International Grading Systems Compared

Frequently Asked Questions

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