Grade Calculator
Your course grade from weighted categories or points — plus what you need on the rest.
Assignments and categories
Paste scores from a spreadsheet
Grading scale:
| Letter | Lowest % | Remove |
|---|
What you need on the work not graded yet
| To finish with | Average needed | Is it possible? |
|---|
Breakdown
| Item | Score | Weight | Counts for |
|---|
About the Grade Calculator
Work out where you stand in a course right now. If your syllabus gives each category a weight — homework 20%, quizzes 15%, exams 50% — enter each category’s score and weight; if your teacher adds up points, switch to Total points. The calculator shows your current percentage and letter grade, every row’s share of it, and the formula with your numbers.
Work that is not graded yet stays out of the current grade. Instead you see the lowest and highest final grade still possible and, for every letter on your grading scale, the average you need on the rest. Tick What-if on a row to try a score without counting it as real.
How to use it
- Choose Weighted (%) if your syllabus lists category weights, or Total points if grades are points earned ÷ points possible.
- Add a row for each category or assignment: its score, what it is out of and — in weighted mode — its weight. A score can be typed as a fraction such as
45/50, and a category with several marks as a sum, such as9+8+10out of10+10+10. - Leave the score empty for work that is not graded yet (keep its weight or points), and tick What-if to test a score you hope to get.
- Check the grading scale — A–F 90/80/70/60 by default — or pick a plus/minus scale or edit the cut-offs to match your syllabus.
- Read your current grade, the final-grade range and the averages needed for each letter. Copy the summary or download the breakdown as CSV.
Examples
Homework 92% (20%), Quizzes 85% (15%), Midterm 78% (25%), Project — (15%), Final exam — (25%)
Current grade 84.42% (B): (20 × 92 + 15 × 85 + 25 × 78) ÷ 60. Final grade between 50.65% and 90.65%; an A needs 98.38% on the remaining 40%, a B 73.38%.
Same course, Project 90% ticked as What-if
Current grade stays 84.42%; with the what-if 85.53%. An A would now need 103.4% on the final, so it is out of reach; a B needs 63.4%.
Homework 45/50, Quiz 18/20, Test 1 82/100, Test 2 —/100, Final —/200
Current grade 85.29% (145 of 170 points). An A (90%) needs an average of 92.67% on the 300 points still to come.
Labs 80% (30%), Essays 90% (30%)
85%: (30 × 80 + 30 × 90) ÷ 60 — the weights are normalised by dividing by 60, not 100.
How the grade is calculated
Weighted: grade = Σ(weight × score %) ÷ Σ weight, over the rows that are graded. Each row’s Counts for column is weight × score ÷ 100 — homework at 92% with a 20% weight contributes 18.4 of its 20 points.
Total points: grade = points earned ÷ points possible × 100, over the graded rows.
When the weights of the graded rows add up to less than 100 — because some work is not graded yet — dividing by their sum instead of 100 gives the grade you are earning on the work so far. If all your weights together do not add up to 100 (a category is missing, or the syllabus uses points), the results are normalised the same way and a note says so.
What you need on the rest
For a target grade T, the average you need on the work not graded yet is
(T × total weight − Σ weight × score so far) ÷ weight not graded yet
or, with points, (T × all points possible ÷ 100 − points earned) ÷ points still to come × 100. What-if scores are counted as if they had happened. The answers are rounded up to two decimals, so the figure shown is always enough; anything over 100% is marked as out of reach without extra credit, and 0% or less means that grade is already secured.
Letter grades
The default scale is the common US 10-point scale: A 90%+, B 80%+, C 70%+, D 60%+, F below 60%. You can switch to plus/minus bands (A 93, A− 90, B+ 87 … D− 60, as in the AMCAS grade conversion guide), the same bands with an A+ from 98 (as in the LSAC table), the College Board chart, or type your own cut-offs — your scale is remembered in this browser for the grade, final grade and test grade calculators.
The letter is read from the percentage as shown, rounded to two decimals, so 89.996% shows as 90% and an A. Some teachers round to whole percentages first; if yours does, type your rounded score in the scale’s terms or ask how borderline marks are treated.
Limitations
- Your teacher’s gradebook is the authority: drop-the-lowest rules, late penalties, curves and rounding policies are not applied here.
- Ungraded work is left out of the current grade. Some teachers count missing work as zero — type 0 for those rows.
- Up to 100 rows; weights from more than 0% to 100% per row.
Privacy
Everything happens in your browser. What you enter or open here is not uploaded or stored by MySmartCoPilot.
Frequently asked questions
How do I calculate my grade with weighted categories?
Multiply each category’s percentage by its weight, add the results and divide by the total of those weights. Homework 92% × 20 + quizzes 85% × 15 + midterm 78% × 25 = 5,065; divided by 60 that is 84.42%.
What if my weights don’t add up to 100%?
The calculator divides by the weights you entered instead of 100 — that is normalising — so 30% at 80 and 30% at 90 give 85%. A note appears so you can check whether a category is missing.
Do ungraded assignments count as zero?
No. Rows with an empty score are left out of the current grade and used for the “what you need” table instead. If an assignment really was marked zero, type 0.
What does What-if do?
A ticked row’s score is used only in the “with what-if scores” projection and in the averages needed for the remaining work. Your current grade still shows only real, graded work.
How do I find the score I need on my final exam?
Add the final as a row with its weight and an empty score — the table shows the average you need on it for each letter. The final grade calculator does the same for a single exam, with a reverse mode.
Can my grade be over 100%?
Yes, if a score is above full marks (extra credit). The calculator allows it, marks the row and notes that the grade can exceed 100%.