If your grades come as percentages, points, and letters, each with a different weight, it’s hard to add them up correctly by hand. This average grade calculator adds it all up for you and gives you your average, letter grade, and GPA in seconds.
Average Grade Calculator
Get your average, letter grade, and GPA instantly - as a straight average or with per-assignment weights.
By Percentage
Enter each assignment's grade. Assignment name is optional. Leave weight off for a simple average.
Auto-filled from Calculate Average above - or just type your own numbers, no need to fill in the table.
Your Result
Calculate Average
US Grading Scale Reference
Key Features
- Percentage, points, or letter grade input
- Weighted or unweighted averaging
- Quick Check for a target grade
- Copy or share your result
- 100% free, no sign-up
How to Use the Average Grade Calculator
- Add a row for each assignment, quiz, test, or project.
- Choose your input type above the table (percentage, points, or letters), then enter the score for each row.
- If your assignments have different weights, switch on “Enable per-assignment weight (%)” and enter each weight from your syllabus. Leave it off if every item counts the same.
- Read your grade average, percentage, and GPA in the results box. It also shows how many assignments were counted.
- Want to know what grade you need? See the Quick Check box, further down this page.
In points mode, enter the points you earned and the possible points. The calculator converts each score to a percentage. For example, 42 out of 50 points is 84%.
In letter mode, pick a letter from A+ to F for each row. The tool converts each letter to the midpoint of its percentage range (for example, a B+ covers 87-89%, so it counts as 88%) before averaging.
Grade Average From Percentage
Weighted Average
Use weighted grading if your syllabus lists different percentages for categories like homework, quizzes, and exams.
Formula = (S₁×W₁ + S₂×W₂ + … + Sₙ×Wₙ) ÷ (W₁ + W₂ + … + Wₙ)
where; S = score, W = weight, n = number of scores.
If your weights total 100%, then (W₁ + W₂ + … + Wₙ) simply becomes 100.
Example
|
Category |
Weight |
Score |
|---|---|---|
|
Homework |
15% |
94 |
|
Quizzes |
20% |
82 |
|
Lab reports |
15% |
88 |
|
Midterm |
20% |
79 |
|
Final exam |
30% |
92 |
Result: 87.1%, a B+. Schools round differently, so check your syllabus if you’re close to a cutoff.
Unweighted Average
Use unweighted if every assignment in your syllabus has the same percentages.
Formula = (S₁ + S₂ + … + Sₙ) ÷ n
where; S = score, W = weight, n = number of scores.
Example
Five tests, all counting the same: 72, 88, 95, 81, 84.
Result: 84.0%, a B.
Grade Average From Points
Switch to points mode, then enter points earned and points possible for each row.
- Weights off: The calculator adds up all points earned and divides by all points possible, so a bigger assignment counts for more. Example: 8 out of 10, and 45 out of 50 → (8+45) ÷ (10+50) = 53 ÷ 60 = 88.3%.
- Weights on: Each row becomes a percentage first, then gets weighted. Same scores as above, each weighted 50%: 8/10 = 80%, and 45/50 = 90%, giving (80×0.5) + (90×0.5) = 40+45 = 85.0%.
- By hand: Points Earned ÷ Points Possible × 100. So 8/10 × 100 = 0.8 × 100 = 80%.
Grade Average From Letter Grades
Switch to letter mode and pick a letter for each row. Each letter converts to a fixed percentage (its range’s midpoint, except F, which counts as 30%), and those get averaged.
Example: A, B+, B-, A- → 94.5, 88, 81, 91 → 88.6%, a B+.
Treat this as an estimate, since a letter covers a range of percentages. Use real percentages when you have them.
Quick Check – What Grade Do You Need?
Open it, just under the calculator. Enter your current grade, the grade you want, and what percent of your course grade the remaining work is worth, then press the Check button. If you’ve already used the calculator above, your current grade fills in automatically. You can also switch it to letter grades.
For example, you’re at 84% on the work you’ve done so far, and that work counts for 70% of your final grade. The remaining 30% is still to come, and you want an 85% overall. Enter 84 as your current grade, 85 as your target grade, and 30 as the remaining weight. Quick Check shows you need about 87.3% on what’s left.
Note: Quick Check is a fast, one-number estimate for right after you’ve calculated your average here, not a full breakdown. If figuring out your final grade is the whole reason you’re here, and you don’t need to calculate an average first, use our final grade calculator instead. It’s built specifically for that.
Sanity-Check Your Result
- Your average should sit between your lowest and highest score. A result outside that range means a weight or score that you have entered is incorrect.
- If every item has the same weight, the weighted and unweighted averages should match. If they don’t, check that every row is filled in the same way.
Common Mistakes When Calculating Average Grade
- Weights that don’t add up to 100%. The calculator doesn’t block this, it just divides by whatever total weight you entered. For example, if your course has 5 categories but you’ve only entered 2, with weights totaling 50%, your result reflects only those 2 categories, not your whole course grade.
- Mixing up letter grades and percentages. A B+ doesn’t always mean 87%. Check your syllabus before converting, and use real percentages when you have them.
- Handling a dropped score incorrectly. When your lowest quiz gets dropped, remove that score from the category and average what’s left, without changing the category’s own weight. For example, quiz scores of 88, 92, 65 and 90 average 83.75% with all four included. Drop the 65, and the remaining three average 90.0%, that’s the number to use, not 83.75%.
- Adding extra credit in the wrong place. Some teachers add it to a category, others to the final percentage. Check your syllabus first.
Grade Scale
Many schools use a plus/minus scale like this one, but cutoffs vary by school, state, and by honors or AP status. Check your syllabus. This is also the scale the calculator uses for your result’s GPA points.
|
Percentage (%) |
Letter grade |
GPA |
|---|---|---|
|
97-100 |
A+ |
4.0 |
|
93-96 |
A |
4.0 |
|
90-92 |
A- |
3.7 |
|
87-89 |
B+ |
3.3 |
|
83-86 |
B |
3.0 |
|
80-82 |
B- |
2.7 |
|
77-79 |
C+ |
2.3 |
|
73-76 |
C |
2.0 |
|
70-72 |
C- |
1.7 |
|
67-69 |
D+ |
1.3 |
|
63-66 |
D |
1.0 |
|
60-62 |
D- |
0.7 |
|
0-59 |
F |
0.0 |
Some schools give A+ a 4.3 instead of 4.0, so check your school’s own scale if you’re tracking GPA precisely.
About These Results
This calculator uses the standard weighted-average formula. Your result depends on the scores and weights you enter, so an incorrect entry can lead to an incorrect result. Your syllabus and teacher’s gradebook are the official source for your grades. Check them for weighting, rounding rules, dropped scores, and extra credit policies.
FAQs
Final Thoughts
Keeping track of your grades is easier when you have everything in one place. This average grade calculator works with %, points, and letter grades. Enter your scores to get your grade average instantly. Then use the Quick box to see what you need to reach your target grade.
