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Calculate test score percentile with our free online tool. Get instant results with helpful explanations and tips for better understanding.
Calculate test score percentile with our free online tool. Get instant results with helpful explanations and tips for better understanding.
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A Test Score Percentile Calculator converts test scores to percentiles, showing how you performed relative to other test-takers.
Enter your test score and distribution parameters. The calculator shows your percentile rank and comparison to others.
This tool calculates the percentile rank of a specific test score based on a normal distribution. It tells you what percentage of test-takers scored lower than you.
You need three values: your raw test score, the mean (average) score of the group, and the standard deviation of the group.
The result represents the percentage of the population that falls below your score. For example, a result of 85 means you scored higher than 85% of the group.
Standard deviation measures how spread out the scores are. It is necessary to convert your raw score into a standardized 'Z-score' before finding the percentile.
You cannot use this calculator without the mean and standard deviation. These statistics are usually provided by the exam board or instructor after the test is graded.
This calculator assumes the test scores follow a 'Normal Distribution' (bell curve). It works best for standardized tests like IQ tests or SATs, but may be inaccurate for skewed distributions.
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