Grade calculator
Your grade now from category scores and weights, plus what you need on the rest.
Current grade
85%B
From 80% of the course that is graded so far. 20% is still to come: 100% on all of it ends at 88%, 0% ends at 68%.
You need an average of 60% on the remaining 20% to finish at 80%.
How the calculator works
Each row is one part of your grade, such as homework, quizzes or tests, with the weight your syllabus gives it. A row with a score counts toward your grade now. A row with a weight but no score is work you haven’t done yet, like the final.
current grade = (weight × score, added up) / (weights that have a score)
needed on the rest = (goal × 100 − weight × score, added up) / (weight still to come)
The first line is your grade if the class ended today, counting only what is graded. The second asks what average on everything left lands you on your goal. If the answer is 0 or less, the goal is already secured. If it is over 100, you can’t reach it without extra credit.
A worked example
Say a syllabus weights homework 30%, quizzes 20%, tests 30% and the final 20%, and you have 92 in homework, 85 in quizzes and 78 on tests. These are the numbers already in the calculator.
30 × 92 + 20 × 85 + 30 × 78 = 2,760 + 1,700 + 2,340 = 6,800
current grade = 6,800 / 80 = 85%
The final is the 20% still to come. For an 80% in the class you need (80 × 100 − 6,800) / 20 = 60 on the final. For a 90% you would need (9,000 − 6,800) / 20 = 110, which is not possible: even a perfect final ends the class at (6,800 + 2,000) / 100 = 88%.
What you need on the rest, at a glance
These two tables use the same formula for a course where one block of work is left, such as a final or the last unit. Find your grade now in the left column and how much of the course is still to come along the top. “Secured” means a 0 on the rest still gets you there; a value marked “(no)” is over 100%.
| Grade now | 10% left | 15% left | 20% left | 25% left | 30% left | 40% left | 50% left |
|---|---|---|---|---|---|---|---|
| 95% | 45% | 61.67% | 70% | 75% | 78.34% | 82.5% | 85% |
| 90% | 90% | 90% | 90% | 90% | 90% | 90% | 90% |
| 85% | 135 (no) | 118.33 (no) | 110 (no) | 105 (no) | 101.67 (no) | 97.5% | 95% |
| 80% | 180 (no) | 146.67 (no) | 130 (no) | 120 (no) | 113.33 (no) | 105 (no) | 100% |
| 75% | 225 (no) | 175 (no) | 150 (no) | 135 (no) | 125 (no) | 112.5 (no) | 105 (no) |
| 70% | 270 (no) | 203.33 (no) | 170 (no) | 150 (no) | 136.67 (no) | 120 (no) | 110 (no) |
| 65% | 315 (no) | 231.67 (no) | 190 (no) | 165 (no) | 148.33 (no) | 127.5 (no) | 115 (no) |
| Grade now | 10% left | 15% left | 20% left | 25% left | 30% left | 40% left | 50% left |
|---|---|---|---|---|---|---|---|
| 95% | secured | secured | 20% | 35% | 45% | 57.5% | 65% |
| 90% | secured | 23.34% | 40% | 50% | 56.67% | 65% | 70% |
| 85% | 35% | 51.67% | 60% | 65% | 68.34% | 72.5% | 75% |
| 80% | 80% | 80% | 80% | 80% | 80% | 80% | 80% |
| 75% | 125 (no) | 108.33 (no) | 100% | 95% | 91.67% | 87.5% | 85% |
| 70% | 170 (no) | 136.67 (no) | 120 (no) | 110 (no) | 103.33 (no) | 95% | 90% |
| 65% | 215 (no) | 165 (no) | 140 (no) | 125 (no) | 115 (no) | 102.5 (no) | 95% |
Notice how fast the rest matters when little is left. From an 85% with 10% to go, an A at 90% needs 135%. With half the course left, it needs 95%.
Weights that add to more or less than 100
If the weights you enter add up to less than 100, the calculator treats the missing part as work still to come. With homework 40% and tests 40% entered, the other 20% is assumed to be ahead of you. If that 20% is really something you’ve already done, add it as a row with its score.
If they add to more than 100 (some teachers write 2-2-1 or points-style weights), the calculator divides by their total, so 60 and 60 count the same as 50 and 50.
Scores as points
You can type a category score as points, such as 43/50, and it becomes 86% inside its row. If your whole class is graded by total points instead of weighted categories, the points grade calculator fits better, because there each assignment counts by how many points it’s worth.
Other calculators for specific cases
To find only the score you need on one final exam, the final grade calculator asks for just your current grade and the final’s weight. For a high-school semester made of quarters plus an exam, use the semester grade calculator. If several scores sit inside one category and you want to drop the lowest, the weighted grade calculator takes a list per category. Gradebooks add their own rules (excused work, drops, hidden totals): the Canvas, PowerSchool, Infinite Campus and Skyward calculators follow each one. Teachers marking a test of equal questions can print a chart from the easy grader.
Grade calculator FAQ
How do I calculate my grade?
Multiply each category’s score by its weight, add those up, and divide by the total weight of the categories that have a score. Homework 92 at 30%, quizzes 85 at 20% and tests 78 at 30% give 6,800 / 80 = 85%.
What do I need on the rest of the class to get an A?
Multiply your goal by 100, subtract the weighted points you already have, and divide by the weight still to come. With 6,800 weighted points and 20% left, a 90% needs (9,000 − 6,800) / 20 = 110%, so it is out of reach; an 80% needs 60%.
Why is my grade different from the gradebook?
Common reasons: the gradebook counts ungraded work as zero, drops a lowest score, or rounds. This calculator only counts what you enter, with no rounding. Check your syllabus for those rules.
What if my weights don’t add to 100?
Below 100, the missing part is treated as work still to come. Above 100, the weights are divided by their total, so they act as proportions.
Can I enter points instead of percentages?
Yes. Type 43/50 and the row counts as 86%.
Does this calculator send or save my grades?
No. The math runs in your browser, and what you type is not sent to any server or stored on your device. Close the tab and it is gone.
How this page was made. Drafted with AI and checked by Silent Student on November 2, 2026. Every number in the tables above was computed by the same code the calculator runs, using exact fractions, not rounded decimals. See our editorial policy.
Silent Student is a paid desktop study app that works inside Canvas and other course sites, from a $4.99 week pass. See how it works if you are curious.