Interquartile Range (IQR) Calculator: Simplify Your Data Analysis
Struggling to make sense of your data? Our Interquartile Range (IQR) Calculator makes it easy to find the IQR, median, quartiles, and even detect outliers. Whether you're a student tackling statistics homework or a researcher analyzing datasets, this tool is designed to save you time and effort. Just enter your numbers, and let us do the math!
Calculate Your IQR
Enter your dataset below (numbers separated by commas, e.g., 5, 10, 15) to calculate the interquartile range and other key statistics.
Understanding the Interquartile Range
The IQR measures the spread of the middle 50% of your data, making it a great tool for understanding variability while ignoring extreme values. Here’s what you’ll get from our calculator:
- Median (Q2): The middle value of your dataset.
- First Quartile (Q1): The median of the lower half of your data.
- Third Quartile (Q3): The median of the upper half of your data.
- IQR: The difference between Q3 and Q1 (Q3 - Q1).
- Outliers: Values below Q1 - 1.5 * IQR or above Q3 + 1.5 * IQR.
Tips for Using the IQR Calculator
Maximize the usefulness of this tool with these quick tips:
- Format Correctly: Enter numbers separated by commas (e.g., 1, 2, 3). Avoid spaces or non-numeric characters.
- Check for Errors: Ensure your dataset has at least 4 numbers for meaningful quartile calculations.
- Interpret Results: Use the IQR to understand data spread and identify outliers for cleaner analysis.
- Reset as Needed: Clear the form to start fresh with a new dataset.