64 out of 87 Test Score

Calculate your grade percentage and letter

What grade is 64 out of 87?

Total number of questions or points possible
Questions or points correctly answered
Questions or points incorrectly answered

73.56% C

A score of 64 out of 87 on a test, assignment or class is a 73.56% percentage grade. 23 questions were wrong or points missed.

A 73% is a C letter grade. A letter grade C means satisfactory or average performance. To get the next higher letter grade available, you would need a score of 67 which would be a C+.

The grade point equivalent to a C is a 2.0 GPA for this score.

Letter Grades for 87 question test

Grade Correct Incorrect Percent
A+85 to 870 to 297.70 to 100.00
A81 to 843 to 693.10 to 96.55
A-79 to 807 to 890.80 to 91.95
B+76 to 789 to 1187.36 to 89.66
B73 to 7512 to 1483.91 to 86.21
B-70 to 7215 to 1780.46 to 82.76
C+67 to 6918 to 2077.01 to 79.31
C64 to 6621 to 2373.56 to 75.86
C-61 to 6324 to 2670.11 to 72.41
D+59 to 6027 to 2867.82 to 68.97
D55 to 5829 to 3263.22 to 66.67
D-53 to 5433 to 3460.92 to 62.07
F0 to 5235 to 870.00 to 59.77

About this calculator

This easy grade calculator can be used for quickly determining the percentage, letter grade and GPA for any test, quiz or exam. It can also be used when calculating an overall score in a class. This page is pre-populated showing the results for the particular calculation 64/87 as a percentage and as a grade. You can access the default calculator here.

To use, input the total number of questions or maximum points available in the "Questions" field. Next either enter the number of correct or incorrect answers in the respective fields. You only need to enter one, the other one will calculate automatically. Your results will appear as you type.

The result will compute the score as a percentage, the letter grade for the score and the GPA for the letter grade. The calculator will also indicate when a score is within one percent of the breakpoint between letter grades where it is appropriate to round up the grade.

Additionally you will see a letter grading scale table which shows every letter grade available for the number of questions on the test. This table indicates the correct and incorrect ranges for each letter grade along with the percentage ranges. Note that on some tests, letter grades are skipped - this is not a mistake. This happens on tests with fewer questions as each question is worth a significant percent of the overall score and significantly moves the letter grade.


Is a 64 out of 87 a good grade?

A score of 64/87 equates to a C. A "C" is not a very good grade. By traditional definition it means "satisfactory" however you're just satisfying the minimum requirements for the class. You got 74% of the questions correct. However you missed 26% so there is still a gap in your performance. The average grade in high school is a B so a C is a bit behind in performance.

How is a percentage calculated for 64 out of 87?

The math is pretty simple to determine the percentage grade on a test as it's simple division and multiplication. The ratio of correct to total number of questions can be expressed as a fraction
correct answers / total questions
The fraction is converted into a decimal using correct answers as the numerator and total questions as the denominator. Divide the correct answers by total questions and you have the answer in decimal form.
correct answers ÷ total questions = decimal
Now to convert into a percent, multiply the decimal times 100. This is your answer.
decimal × 100 = percent answer
In this particular case, the formula for calculating the grade percent 64/87 is
64 ÷ 87 × 100 = 73.56%
On a 87 question test, if you miss 23 and get 64 right, you will have a 73.56%.

How is a letter grade determined for 64 out of 87?

To determine the letter grade, we must make use of a letter grade scale lookup table. You can find one here.

Take the percentage calculated for the test and locate the corresponding range in the percent column. The letter grade for that row is the letter grade for this test.

For this score, we find our 73.56% is in the 73-76% range. This corresponds with the letter grade "C". Thus, a 73.56% grade is a C.

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