5 Number Summary Calculator – Quartiles, Median, Min & Max
Calculate the five number summary of any data set: minimum, first quartile (Q1), median, third quartile (Q3), and maximum. This free online statistics calculator is ideal for students, educators, researchers, and analysts who need quick, accurate summaries for box plots or data analysis.
Enter Your Data Set
What is a Five Number Summary?
A five number summary gives a snapshot of your dataset’s spread and central tendency. It is widely used for box plots and descriptive statistics in science, business analytics, and education. The values are:
- Minimum: Smallest value
- First Quartile (Q1): 25th percentile
- Median: 50th percentile (middle value)
- Third Quartile (Q3): 75th percentile
- Maximum: Largest value
Many statistics tasks—like identifying skewness, outliers, and spread—start with the five number summary.
Example Data Sets:
7, 12, 15, 20, 22, 25, 29, 32, 354.5, 6.2, 7.1, 8.9, 9.3, 10.7, 11.2100, 150, 200, 250, 300
Why Use Our 5 Number Summary Calculator?
- Accepts numbers separated by comma, space, or new line (paste from Excel, Google Sheets, or CSV)
- Handles decimals, negatives, and large data sets (up to 500 numbers)
- Instantly shows minimum, Q1, median, Q3, maximum
- Calculates Interquartile Range (IQR) and detects outliers
- Copy summary to clipboard for reports or assignments
- Responsive design: mobile, tablet, and desktop
- No registration, no ads, and always free
Use this five number summary calculator for box plot prep, statistics homework, teaching, or quick data checks. Perfect for AP Statistics, college coursework, or data-driven business analysis.
What Is a 5 Number Summary? Understand Your Data in Seconds
Our 5 Number Summary Calculator is a simple yet powerful tool that gives you a fast and accurate snapshot of your dataset — showing five key statistical values: the minimum, first quartile (Q1), median, third quartile (Q3), and the maximum. These five numbers form the foundation of descriptive statistics and are commonly used to create box plots, analyze data distribution, and detect outliers in a data set.
Whether you’re a statistics student preparing for an exam, a data analyst comparing datasets, or a teacher building examples for classroom learning, this five number summary calculator delivers instant insights. Simply input a list of comma-separated numerical values, and within seconds, you’ll receive a clean, reliable breakdown of your data’s range and spread.
The calculator is ideal for:
- Building box-and-whisker plots
- Finding the interquartile range (IQR)
- Spotting outliers in data
- Performing quick descriptive statistics
- Summarizing large datasets efficiently
Our tool is 100% free to use — no login, no downloads, and fully optimized for both desktop and mobile users. Whether you’re working on school assignments, research reports, or real-world data analysis, this online quartile calculator is designed to save time and provide accurate results every time.
Use this calculator to make smarter decisions, enhance your data interpretations, and gain a clearer understanding of any dataset through the lens of minimum, maximum, median, and quartiles — the backbone of exploratory data analysis.
