Mean, Median & Mode Calculator

Calculate mean, median, mode, and range from a set of numbers.

By Konstantin Iakovlev · Updated September 2026 · Source: Khan Academy

Mean

6.63

Median

7.00

Statistics

Mean6.63
Median7.00
Mode7
Range9.00
Count8

Use the Mean, Median & Mode Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.

Disclaimer: This calculator is for informational purposes only. Results are estimates based on the information you provide and the assumptions described on this page.

How It Works

Drop a list of numbers into this tool and it returns the four measures statisticians reach for most: mean, median, mode, and range. Those measures tell you where a dataset clusters and how far it spreads, which is exactly what you need when sizing up sales figures for a product launch or reading through a batch of customer satisfaction scores.

Each measure answers a different question. The mean adds every value and divides by how many there are. The median is the middle value once the numbers are sorted; with an even count, you average the two middle ones. The mode is whichever value shows up most often, and the range is simply the largest value minus the smallest.

Separate your entries with commas or spaces so the tool reads them correctly. Two errors trip people up most often: pulling the median straight from an unsorted list, and naming a single mode when several values tie for the highest frequency. Sorting first and checking the counts handles both.

Example: Analyzing Quarterly Regional Sales

  1. 1 Enter one quarter's sales for five regions, in thousands of USD: 125, 150, 110, 140, 150.
  2. 2 Sorted: 110, 125, 140, 150, 150. Mean = (125 + 150 + 110 + 140 + 150) / 5 = 675 / 5 = 135. With five values the median is the third sorted value, 140. 150 appears twice, so it is the mode, and the range is 150 − 110 = 40.
  3. 3 The calculator updates as you type and shows Mean 135.00, Median 140.00, Mode 150, Range 40.00 and Count 5.
  4. 4 Average regional sales were $135,000. The median of $140,000 sits above the mean because the lowest region, at $110,000, pulls the average down; two regions sold more than $140,000 and two sold less. $150,000 was the most frequent figure, and sales varied by $40,000 between the lowest and highest regions.

Source: Khan Academy · Last updated: September 2026

Frequently Asked Questions

When should I use the median instead of the mean?
Use the median when data is skewed or contains outliers. For example, median household income is more representative than mean income because a few very high earners pull the mean upward. The median is the middle value and is not affected by extreme values.
Can a data set have more than one mode?
Yes. A data set with two modes is called bimodal, and one with more than two is multimodal. If all values appear the same number of times, the data set has no mode. Mode is most useful for categorical data or identifying common values.
What is the relationship between mean, median, and mode?
In a perfectly symmetric distribution, all three are equal. In a right-skewed distribution (like income), the mean is usually above the median, and in a left-skewed one below it. That ordering is only a rule of thumb: it fails fairly often, especially for discrete data or distributions with more than one peak, so treat the gap between mean and median as a hint about skew rather than a measure of it.

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