Grade Calculator
Enter your scores, point totals and category weights to see your current class grade as a percentage and letter, for weighted or total-points grading.
Each category counts for a fixed share of the grade (for example homework 20%, exams 80%).
- Letter grade
- B+
- Points to the next letter
- 2.4 to a A-
- Points earned / possible
- 264 / 300
- Rows counted
- 3
| Assignment | Score | Percent | Weight | Adds to grade |
|---|---|---|---|---|
| Homework | 92 / 100 | 92% | 20% | 18.4 pts |
| Midterm | 84 / 100 | 84% | 30% | 25.2 pts |
| Final exam | 88 / 100 | 88% | 50% | 44 pts |
| Letter | Minimum % |
|---|---|
| A | 93% |
| A- | 90% |
| B+ | 87% |
| B | 83% |
| B- | 80% |
| C+ | 77% |
| C | 73% |
| C- | 70% |
| D+ | 67% |
| D | 63% |
| D- | 60% |
| F | below 60 |
How this was calculated
- Turn each row into a percentage: Homework 92/100 = 92%; Midterm 84/100 = 84%; Final exam 88/100 = 88%.
- Multiply each percentage by its weight: 92% × 20% = 18.4; 84% × 30% = 25.2; 88% × 50% = 44.
- Add them up: 18.4 + 25.2 + 44 = 87.6%, which is a B+ on the standard scale.
How this grade calculator works
Most classes grade in one of two ways, and the grade calculator handles both. In a weighted class each category (homework, quizzes, exams) is worth a fixed percentage of the final grade no matter how many points it contains. Your grade is the sum of each category's percentage multiplied by its weight. In a total points class every assignment simply adds its points to one pool, and your grade is points earned divided by points possible. Check your syllabus: if it lists percentages next to categories, it is weighted; if it just lists point values, it is total points.
Worked example (weighted)
Homework is 20% of the grade and you have 92%. The midterm is 30% and you scored 84%. The final is 50% and you got 88%. Multiply each by its weight: 92 × 0.20 = 18.4, 84 × 0.30 = 25.2, 88 × 0.50 = 44.0. Add them: 18.4 + 25.2 + 44.0 = 87.6%, a B+ on the standard scale. Notice the final exam moved the grade more than anything else even though its raw score was in the middle, because it carries half the weight.
Worked example (total points)
Three homeworks worth 20 points each (you earned 18, 17 and 20) and one test worth 100 (you earned 82). Points earned: 18 + 17 + 20 + 82 = 137. Points possible: 20 + 20 + 20 + 100 = 160. Grade: 137 ÷ 160 = 85.6%, a B. In this system the test is automatically worth more because it has more points; there are no separate weights to enter.
What if the weights do not add up to 100?
Partway through a semester you may only have grades for categories worth, say, 60% of the course. The calculator warns you and then normalizes: it treats the 60% you have as the whole, which is exactly how most learning-management systems (Canvas, PowerSchool, Blackboard) show a running grade. The number is your grade so far, not a prediction. To see what you need on the remaining work, use the final grade calculator linked below. If the weights add up to more than 100%, something is entered twice; the tool will not calculate until you fix it.
Letter grades and common mistakes
The letter uses the common US scale: 93 and above is an A, 90–92.9 an A-, 87–89.9 a B+, and so on down to 60 for a D-. Many schools use different cut-offs (some have no A- or treat 90 as an A), so the letter is a guide, and the percentage is the real result. Common slip-ups: entering a score as a percentage but leaving "out of" at the assignment's point total (if you enter 85 for 85%, "out of" must be 100); forgetting a zero for missing work, which drags a grade down far more than a low score does; and mixing dropped lowest scores into the average when the syllabus says they are dropped.
Frequently asked questions
›How do I calculate my grade with weighted categories?
Turn each category into a percentage, multiply by its weight as a decimal, and add the results. Homework 92% at 20%, midterm 84% at 30% and final 88% at 50% gives 18.4 + 25.2 + 44.0 = 87.6%.
›How do I calculate my grade with total points?
Add up the points you earned and divide by the points possible, then multiply by 100. 137 points earned out of 160 possible is 85.6%.
›What if my weights do not add up to 100%?
The calculator warns you and scales the weights you entered to 100%, which shows your grade so far on the work that has been graded. That is how most online gradebooks display a running grade.
›What percentage is an A?
On the common US scale used here, 93% and above is an A, 90–92.9% an A-, 87–89.9% a B+, 83–86.9% a B, 80–82.9% a B-, and so on down to 60% for a D-. Below 60% is an F. Your school's scale may differ.
›Should I enter scores as points or percentages?
Either works. Enter points earned with the assignment's point total in "out of", or enter a percentage with "out of" set to 100.