Quartile Calculator

Calculate Q1, Q2 (median), Q3 quartiles and interquartile range (IQR) from a dataset. Provides the five-number summary with visual breakdown of data distribution.

How to Use Quartile Calculator

Enter your dataset values separated by commas, spaces, or newlines (minimum 4 numbers). Click Calculate to see Q1, Q2 (median), Q3, IQR, and the complete five-number summary.

Step-by-Step Instructions

  1. Enter numbers separated by commas or spaces
  2. Click Calculate Quartiles
  3. View Q1, Q2, Q3, and IQR values
  4. See the five-number summary breakdown

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