Interquartile Range Calculator
Calculate the interquartile range (IQR) of a dataset. Enter numbers separated by commas to compute Q1, Q3, median, and IQR.
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How to use this tool?
- 1 Enter the requested data in the fields above carefully.
- 2 Click the calculate button to process the information instantly.
- 3 Analyze the detailed result and the formula explanation presented below.
- 4 You can print, share, or even embed the calculator on your own site for free.
Unlike traditional static calculators, our tools adapt to specific user needs. They include detailed explanations of the formulas used, ensuring transparency in results. Furthermore, our design is focused on user experience, eliminating distractions and focusing on what really matters: your data and conclusions.
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Frequently Asked Questions
The interquartile range (IQR) is a measure of statistical dispersion, equal to the difference between the third quartile (Q3) and the first quartile (Q1). It represents the middle 50% of the data.
First, sort the data. Then find the median (Q2). The median of the lower half is Q1, and the median of the upper half is Q3. IQR = Q3 - Q1.
The IQR indicates the spread of the middle half of the data. A larger IQR suggests greater variability, while a smaller IQR indicates that the data points are closer together.
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