This calculator estimates your score based on total points (or questions) and the number of wrong answers. It also assigns a letter grade using the scale you set below.
Formulas used
- Correct answers: correct = total − wrong
- Percentage: percent = (correct ÷ total) × 100
- Letter grade: the grade is the highest letter whose minimum percentage is less than or equal to your result (based on your customized scale).
FAQ
Can I use this for points instead of questions?
Yes. “Total points” can represent questions, points, or any total scoring units-as long as
“wrong” uses the
same units.
What if I have partial credit?
If your exam gives half‑points (or any increment), set the increment field accordingly and
edit the scale if
needed. For strict partial-credit grading, consider using points instead of questions.
How do I customize the grading scale?
Update the minimum percentages for each letter grade. The calculator will automatically
apply
your
thresholds.
Why doesn’t my grade match my teacher’s?
Some grading systems use curves, weighted sections, or specific rounding rules. This
calculator uses the
straightforward percentage method and your scale thresholds.
Is my information saved?
No. Calculations are performed locally in your browser.