Calculate test percentage and letter grade from correct/wrong answers, earned points, partial credit or negative marking. Generate a full score table, see minimum correct and maximum wrong for every letter, batch-grade a class, and export everything locally.
Scoring is explicit. Standard question mode uses correct ÷ total. Points mode uses earned ÷ possible. Partial-credit mode adds partial answers × partial-credit fraction. Negative-marking mode applies a configurable reward to correct answers and penalty to wrong answers, with blanks worth zero. Any curve adjustment is shown separately.
Test size
Performance
Blank
Possible
Earned
Optional curve
Use the global flat curve field above to add percentage points after raw scoring.
Total
Correct
Partial
Credit fraction
Total
Correct / Wrong
Marking rule
Blank answers
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Automatically total − correct − wrong.
Raw score—before curve
Adjusted score—after flat curve
Letter grade—custom scale
Correct-equivalent—question modes
One question—raw percentage impact
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Test result
Enter test scoring information.
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Raw calculation—
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Adjusted result—
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Pass status—
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No thresholds yet.
Score table. Uses your selected increment.
Earned / Correct
Wrong / Unearned
Percent
Grade
Class scores
Batch results
Paste class scores to begin.
No audit yet.
Grading note: letter thresholds, rounding, curves and negative-marking rules vary by teacher and institution. The calculator shows the exact arithmetic and scale you configure; official grading policy remains authoritative.