Quartile calculator
Calculate quartiles to divide your dataset into four equal parts.
Input data
Data
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Selected: Test Scores
How to calculate quartiles
- Enter your numeric data directly into the data table or upload a CSV file
- Use the "Select Data Column" control to choose which column of data to analyze
- The calculator will automatically determine the first quartile (Q1), second quartile (Q2, median), and third quartile (Q3)
- View the interquartile range (IQR) which is Q3 - Q1
- Examine the visualization to see how your data is distributed across quartiles
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