Average Grade Calculator
Enter your grades, test scores or percentages to get their simple average, where every score counts equally. Turn on drop lowest if your class drops one quiz.
Leaves your single lowest score out, for classes that drop one quiz.
Average
84.3
B
if a percentage
Average = 253 ÷ 3 = 84.3 · highest 91, lowest 74. Rounded to one decimal; letter on the typical US scale.
How to calculate your average grade
Add up all your scores, then divide by how many scores there are:
Average = sum of scores ÷ number of scores
- Scores of 85, 90, 92: (85 + 90 + 92) ÷ 3 = 267 ÷ 3 = 89, a B+ on the typical US scale.
- Scores of 70 and 80: (70 + 80) ÷ 2 = 75, a C.
The same method works for a course average, a class average across students, or the average of any list of numbers. Your scores need to be on the same scale, so if a quiz was marked in points, turn its points into a percentage first.
Average of percentages vs average of points
Suppose you scored 18/20 (90%) on a quiz and 30/50 (60%) on a test. Averaging the percentages gives (90 + 60) ÷ 2 = 75%. Adding up the points gives 48/70 = 68.6%.
Neither is wrong. Averaging percentages counts every assignment equally, while totalling points lets bigger assignments count for more. Use whichever your teacher uses: if the gradebook adds up points for the whole course, the points mode of our grade calculator matches it.
When to use a weighted average instead
A simple average assumes every score counts the same. If your syllabus gives scores different weights, for example tests 60% and homework 40%, a simple average will be off. Enter each score with its weight in the weighted average calculator instead.
Before exams, you can also work out the score you need on your final, and once your course grades are in, convert them to a GPA.
Frequently asked questions
How do I calculate a class average?
Add up every student's score and divide by the number of students. You can enter each student's score as a row in the calculator above; the result is the class average for that test or assignment.
Can I average letter grades?
Not directly. Letters have to be turned into numbers first, usually grade points such as A = 4.0 and B = 3.0, and the average of those points is a GPA. To look up the points for each letter, use the letter grade to GPA converter.
How much does one more score change my average?
It depends on how many scores you already have. Adding a 70 to 85, 90, 92 moves the average from 89 to 337 ÷ 4 = 84.25. The longer your list, the less any single score moves it.
What does the drop lowest option do?
It leaves your single lowest score out of both the total and the count, which matches classes that drop one quiz or homework. The result tells you which score was dropped. If your class drops more than one score, delete the extra rows yourself.
Are my scores saved or sent anywhere?
No. The calculation runs in your browser and the scores you type aren't sent to a server. Refreshing the page clears them.