Curve Grade Calculator
Apply common grading curves to adjust exam scores
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About This Tool
The Curve Grade Calculator helps students and educators determine percentile ranks based on test scores and distribution. Useful for teachers grading tests or students analyzing their performance.
Input your score, the total possible points, and the mean and standard deviation of the class scores. The calculator outputs your percentile rank and how you compare to others in the class.
Ideal for understanding academic standing without needing personal data or account creation. All calculations are done locally within your browser.