Grade Calculator
Use this grade calculator to work out your current grade in a class where homework, quizzes, tests and projects count for different percentages. Enter each category's score (or points earned and possible) with its weight from the syllabus. You get your weighted grade, the letter grade, and how much of the course is still to be graded.
Updated
Results
- Weights entered
- Weight check
- Points secured (out of 100)Score × weight ÷ 100, added up
- Weight still to comeShown when your weights add up to less than 100%
- Categories counted
| Category | Score | Weight | Share of grade | Points contributed |
|---|
Results are estimates. See the methodology below.
How to use the grade calculator
- Choose percent or points. Use percent if your gradebook shows a category average, or points if it shows points earned out of points possible.
- Fill in one row per category, such as homework, quizzes, midterm and project, with the weight your syllabus gives it. Rows you leave completely blank are ignored.
- Leave out work that hasn't been graded yet. If the final exam is still ahead, don't enter it: the calculator shows your grade on everything graded so far and the weight still to come.
- Plus/minus is on by default; uncheck it for plain A–F letters.
How your grade is calculated
Each category's score is multiplied by its weight, and the total is divided by the sum of the weights you entered:
grade = Σ (score × weight) ÷ Σ weights
In points mode, the score is points earned ÷ points possible × 100. Because the result is divided by the weights you actually entered, weights that add up to less than 100% give your current grade on graded work, the method Amarillo College's teaching center describes for Blackboard gradebooks with ungraded categories. Weights above 100% are scaled down to 100%.
The calculator also shows points secured: Σ (score × weight) ÷ 100, the part of a full 100-point course grade you've already locked in.
The letter follows a common US convention: A 90% and up, B 80–89.99%, C 70–79.99%, D 60–69.99% and F below 60%. With plus/minus on, the top three points of each band get a +, the bottom three get a − (87–89.99% is a B+, 80–82.99% a B−), and A+ starts at 97%. There is no F+ or F−. The letter comes from the unrounded percentage, so 89.99% is a B+. Cutoffs vary by school and syllabus: some drop plus/minus, some use other cutoffs (the College Board's conversion chart, which it presents as one commonly used system, starts D at 66%), and some teachers round 89.5% up. Your teacher's scale and rounding rule always win.
Examples
1. Grade before the final
Homework 92% (weight 20%), quizzes 85% (20%), midterm 78% (25%) and project 88% (15%). The final, worth 20%, isn't graded yet.
| Category | Score | Weight | Share of grade | Points |
|---|---|---|---|---|
| Homework | 92% | 20% | 25% | 23.00 |
| Quizzes | 85% | 20% | 25% | 21.25 |
| Midterm | 78% | 25% | 31.25% | 24.38 |
| Project | 88% | 15% | 18.75% | 16.50 |
Your current grade is 85.13%, a B. The weights add up to 80%, so 20% is still to come, and you've secured 68.10 of 100 possible points. Entering the same work as points (46/50, 17/20, 78/100, 44/50) gives the same result.
2. After the final
Add the final as a fifth row: 80% with a weight of 20%. The weights now total 100% and the course grade is 84.10%, still a B.
3. A total-points class
If your teacher simply adds up points, enter one row with all of them and a weight of 100%. 187 points out of 200 gives 93.50%, an A.
What to do with the result
A current grade is only part of the story when a lot of weight is still to come. With 20% left, a strong or weak final can still move you a full letter. To find the exact score you need, enter your current grade and the final's weight in our final grade calculator.
Frequently asked questions
What if my weights don't add up to 100%?
Below 100%, the calculator treats the missing weight as work not graded yet and shows your grade on what's done. Above 100%, it scales the weights down. For example, 90% and 80% each weighted 60% (120% in total) give 85%. Check the syllabus if you expected exactly 100%.
How do I find my average for a category?
If the assignments in a category are worth different points, use points mode and enter the category's total points earned and possible. That weighs bigger assignments more, as a points-based gradebook does.
Can I include extra credit?
Yes. Scores can go up to 200%, and in points mode you can earn more points than are possible. Some teachers instead add extra credit as bonus points to the final total; ask how yours handles it.
Is 89.99% an A or a B+?
Here it's a B+, because the letter comes from the unrounded percentage. If your teacher rounds to the nearest whole number, 89.5% or more may count as an A. Their rule decides.
Does this calculator drop my lowest quiz?
No. Drop-the-lowest rules, category caps and other syllabus policies aren't modeled. Apply them first, for instance by leaving the dropped quiz out of the category total, then enter the result.
Sources
This calculator gives an estimate for planning only. Your official grade is the one your teacher or school calculates under the course syllabus and grading policy.