Pevlika Browser Apps

Interquartile Range (IQR) Calculator

Paste your numbers to get the IQR, quartiles and outlier limits.

Runs in your browser — nothing is uploaded

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How to use Interquartile Range (IQR) Calculator

  1. Enter your values — the unit for each field is shown next to it.
  2. The result updates instantly as you type.
  3. Copy the results, or change inputs to compare scenarios.

Formula & assumptions

IQR = Q3 − Q1

Outliers: below Q1 − 1.5·IQR or above Q3 + 1.5·IQR

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