The Mean Median Mode Calculator is a quick way to analyse a data set. By entering numbers separated by commas or spaces, you’ll get the mean (average), median, mode(s), and range. These are the four most commonly taught measures of central tendency and spread.
This tool is perfect for students learning statistics basics, and for real-life uses such as test scores, survey data, or performance tracking.
What does the calculator do?
- Mean (average): Adds up all the numbers and divides by how many there are.
- Median: Finds the middle value when the numbers are sorted.
- Mode(s): Finds the most frequent value(s). There can be one mode, several modes, or none.
- Range: The difference between the largest and smallest values.
- Copy results: One click copies everything for notes or homework.
Worked examples
Example 1 — Small data set
Data: 2, 5, 7, 7, 10
- Mean = (2+5+7+7+10) ÷ 5 = 6.2
- Median = middle value = 7
- Mode = most frequent = 7
- Range = 10 − 2 = 8
Example 2 — Even number of values
Data: 4, 6, 8, 10
- Mean = 28 ÷ 4 = 7
- Median = average of middle two (6 and 8) = 7
- Mode = no mode (all values unique)
- Range = 10 − 4 = 6
Example 3 — Real-life test scores
Scores: 50, 60, 60, 70, 80, 90
- Mean = 68.3
- Median = (60+70) ÷ 2 = 65
- Mode = 60 (appears twice)
- Range = 90 − 50 = 40
Why is it important?
- In school: These four measures are essential in statistics lessons, forming the foundation for data interpretation.
- Real life: Used in exam grading, sports averages, business performance, survey results, and more.
- STEM pathways: A first step toward deeper statistical concepts such as standard deviation, variance, and distributions.
Frequently Asked Questions
Q1: What’s the difference between mean, median, and mode?
- Mean = arithmetic average
- Median = middle value
- Mode = most frequent value(s)
Q2: Can a data set have more than one mode?
Yes. If two or more values appear equally often, the set is multi-modal.
Q3: Why include the range?
Range shows how spread out the data is, which adds context beyond just the center.
Q4: What if I enter words or symbols?
Only valid numbers will be used. Invalid entries are ignored.