Use this free grade average calculator to average a list of grades into one result. Enter percentages, pick letter grades, or enter points earned and points possible. You can drop the lowest scores and see what the average needs to reach the next letter.
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Enter at least one grade to see your average.
| Entry | Value | Percent | Grade | Status |
|---|
To average grades, add them up and divide by how many there are. For scores of 92, 85, 78 and 88, the total is 343 and the average is 343 ÷ 4 = 85.75%, a B. If your teacher drops the lowest score, the total is 265 over 3 scores, which is 88.33%. The grade average calculator above does this for percentages, letter grades, or points earned and possible, and it can drop the lowest scores for you.
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Choose the kind of grades you have, then fill in one box per grade. Boxes you leave completely empty are ignored, and a half-filled box asks for the missing number instead of guessing.
If some grades count for more than others, such as tests worth more than homework, use the weighted grade calculator. For a 4.0 grade point average, use the GPA calculator.
A letter is a range, not a single number, so averaging letters needs an assumption. This calculator uses the middle of each letter’s band on your chosen scale. On the standard example scale that is A = 95, B = 85, C = 75, D = 65, and F = 30. Open Percent used for each letter to see the values for your scale and change any of them. Your changes are reset when you switch scales.
The average of those percentages is then graded on the same scale, so the answer is a letter and a percentage. This is a transparent estimate. It is not the same as a grade point average, which uses points like 4.0 for an A.
Enter how many to drop and the calculator leaves out the entries with the lowest percentages. If two are tied, the one listed first is dropped. Dropped entries are marked “Dropped” in the breakdown, and you can never drop every entry. If your teacher drops grades by a different rule, delete that row yourself and leave the drop count at 0.
Average = Sum of the counted percentages ÷ Number of counted entries
Total points = (Sum of counted points earned × 100) ÷ Sum of counted points possible
The letter is the first grade on the scale, counting down from the top, whose minimum is at or below the result. A result exactly on a cutoff earns that grade. The full rules are on the grading methodology page.
| Entries | Method | Result | Standard | Plus/minus |
|---|---|---|---|---|
| 92, 85, 78, 88 | Average of percentages | 85.75% | B | B |
| Same four, lowest dropped | Average of percentages | 88.33% | B | B+ |
| A, B, B, C | Letter grades (85 on both scales) | 85% | B | B |
| 9/10, 40/50, 95/100 | Average of percentages | 88.33% | B | B+ |
| Same three entries | Total points (144 of 160) | 90% | A | A- |
The last two rows show why the method matters. Averaging percentages treats the 10-point entry (90%), the 50-point entry (80%) and the 100-point entry (95%) as equals, giving 88.33%. Counting total points lets the 100-point entry carry most of the weight, giving 144 of 160, exactly 90%. That sits on the A cutoff of the standard scale.
The standard and plus/minus scales are examples, not rules. If your syllabus uses different cutoffs, choose Custom and enter them, or build and print a chart with the grading scale calculator.
Teachers average grades in different ways, so check your syllabus first. For background on the maths, see Arithmetic mean and Grading in education on Wikipedia.
Yes. It is free, needs no sign-up, and runs in your browser. Your grades are not sent anywhere or saved.
Use the one your syllabus describes. “Every assignment counts the same” points to the average of percentages. “Points are added up” points to total points. When they give the same letter, it does not matter.
A letter stands for a range of percentages. To average A and C you need numbers, so each letter is given a percentage. The default is the middle of its band, and you can change it.
No. A box with nothing in it is ignored. If a missing grade should count as zero, enter 0 for it.
There would be nothing left to average. With four grades entered you can drop up to three.
The value was rounded for display only. A result like 89.5% is graded on the unrounded number, and the page tells you when this happens. If your teacher rounds first, turn on “Round before grading” in Settings.
No. Only your scale and display settings are saved on this device. For a class sheet that can keep scores in your browser, see the class grade calculator.
It is a quick, transparent calculation. Your instructor or school sets the official grade. See the disclaimer.