How is a test score rounded?

Most grading systems round to the nearest whole percentage point (e.g., 89.5% rounds to 90%), though some teachers round down.

What is a "test grader chart"?

It is a reference table generated for teachers showing the precise letter grade and percentage equivalent for 1 wrong, 2 wrong, 3 wrong, and so on.

Yes, you can input decimal incorrect values (e.g., 1.5 incorrect answers) to calculate exact partial credit outcomes.

Education Tool

Quickly grade a quiz, test, or exam. Generates a full letter grade chart showing points, percentages, and grade bounds based on incorrect answers.

Live Solver

Total Questions on Test

Number of Incorrect Answers

Percentage Grade94.0%

Letter GradeA

Correct Answers Ratio47 / 50

Incorrect Answers	Correct Score Ratio	Percentage	Grade Letter
0 wrong	50 / 50	100.0%	A
1 wrong	49 / 50	98.0%	A
2 wrong	48 / 50	96.0%	A
3 wrong	47 / 50	94.0%	A
4 wrong	46 / 50	92.0%	A
5 wrong	45 / 50	90.0%	A
6 wrong	44 / 50	88.0%	B
7 wrong	43 / 50	86.0%	B
8 wrong	42 / 50	84.0%	B
9 wrong	41 / 50	82.0%	B
10 wrong	40 / 50	80.0%	B
11 wrong	39 / 50	78.0%	C
12 wrong	38 / 50	76.0%	C
13 wrong	37 / 50	74.0%	C
14 wrong	36 / 50	72.0%	C
15 wrong	35 / 50	70.0%	C

Equation ModelTest Score % = [(Total Questions − Incorrect) ÷ Total Questions] × 100

Finds the test score percentile by dividing the number of correct answers by the total questions on the exam.

Symbol	Description
Total Questions	Total number of items on the test
Incorrect	Number of incorrect answers

Input the total number of questions on the exam (e.g., 40).
Input the number of incorrect answers to find an individual grade, or simply view the complete generated grading key below.