Average Calculator

Calculate mean, median, mode, range, min, and max from any list of numbers.

Separate by commas, spaces, or new lines

Mean (Average)

30

Count5
Sum150
Median30
ModeNone
Range40
Min10
Max50

How to Use the Average Calculator

  1. Enter your numbers in the text box. Separate them with commas, spaces, or put each on its own line. For example: 10, 20, 30, 40, 50.
  2. Read the results. The calculator instantly shows the mean, median, mode, range, min, max, count, and sum.
  3. Mean is the arithmetic average: add all numbers, then divide by how many there are.
  4. Median is the middle value when the numbers are sorted. If there is an even count, it is the average of the two middle values.
  5. Mode is the most frequently appearing value. If all values appear the same number of times, "None" is shown.

You can paste data directly from a spreadsheet. The calculator ignores extra spaces and blank lines, so messy input is fine.

Formulas Used

Mean = Sum of all values / Count of values
Example: (10 + 20 + 30 + 40 + 50) / 5 = 150 / 5 = 30

Median: sort the values, take the middle one
  Odd count: middle value
  Even count: average of the two middle values
Example: [10, 20, 30, 40, 50] → middle = 30

Mode: the value that appears most often
Example: [1, 2, 2, 3] → mode = 2

Range = Max - Min
Example: 50 - 10 = 40

Frequently Asked Questions

All three are measures of central tendency but they describe different things. The mean is the arithmetic average: add all values, divide by the count. The median is the middle value in a sorted list and is less affected by extreme outliers. The mode is the most frequent value and is useful for categorical data. For a symmetric dataset like [10, 20, 30, 40, 50], all three give similar answers. For a skewed dataset like [10, 10, 10, 10, 1000], the mean is 208 but the median is 10, which better represents typical values.

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