Grade calculator
Enter the points you scored and the points each piece was worth. The percentage and the letter follow.
| Assignment | Score | Out of | Remove |
|---|---|---|---|
Enter what you scored and what the assignment was out of.
How to use it
- Step 1Put each graded piece of work in a row: what you scored, and what it was out of. A quiz marked 18/20 is 18 and 20.
- Step 2Add rows for everything that has come back so far — homework, quizzes, labs, tests. The name of each row is only there to help you read the table.
- Step 3Your percentage and its letter appear under the table, with the share of the class that each piece carries.
Adding points is not the same as averaging percentages
If your class is graded out of points, your grade is the points you scored divided by the points available — not the average of the percentages you got. A 9/10 quiz and a 70/100 test make 79 out of 110, which is 71.8 %, while averaging 90 % and 70 % would say 80 %. The test is ten times the size of the quiz, and the points already know that.
This is also why a single big assignment can move a grade that a dozen small ones cannot. The share column in "How it adds up" shows exactly how much of the class each row carries, which is usually more lopsided than it feels.
What your grade does not include yet
The percentage here is your grade on the work that has been graded. Assignments that have not been handed back, or not yet set, are simply not in the table — so a grade in week three is a report on three weeks, not a prediction. If you want to know what is still possible, put in the score you expect for the work to come and watch the number move.
A class whose syllabus divides the grade into categories with percentages — homework 20 %, tests 50 % — does not work this way, and adding its points up will give the wrong answer. That kind of class belongs in the weighted grade calculator.
Where the letters start
The letter under your percentage uses the usual American bands: 93 and above an A, 90 an A−, 87 a B+, 83 a B, and so on down to 60 for a D−. A school that cuts an A at 94, or one that does not use plus and minus, will draw the line somewhere else — the percentage is the part that is certain.
Questions and answers
What is my grade right now?
Add up the points you have scored and the points those assignments were worth, then divide. This page does that as you type and puts a letter next to the percentage.
How do I work out a grade out of points?
Divide the points earned by the points possible and multiply by 100. Scoring 43 out of 50 is 43 ÷ 50 × 100 = 86 %, a B.
My syllabus says tests are 50 % of the grade. Can I use this page?
No — use the weighted grade calculator instead. When the syllabus gives each category a percentage, the points inside a category do not compare with the points in another one.
What if I want to know what I need on the last test?
That is the final grade calculator: it takes the grade you have now, the grade you want and what the last test is worth, and gives the score you need.
Can I use it for extra credit?
Yes. Put the extra-credit points in the score column and leave the "out of" column at zero for that row — the points are added to what you earned without adding to what was available.