Average Calculator
Calculate mean, median, and mode of a set of numbers along with count, sum, range, min, and max.
Enter values and click Calculate Average to see results
Formula
What is Average (Mean)?
The arithmetic mean is the most common type of average. It is calculated by adding all values and dividing by the number of values.
Mean = (x₁ + x₂ + ... + xₙ) / n
What is Median?
The median is the middle value when numbers are sorted in ascending order. If the count is even, the median is the average of the two middle values. The median is less affected by extreme values (outliers) than the mean.
What is Mode?
The mode is the value that appears most frequently in a data set. A data set can have no mode, one mode (unimodal), or multiple modes (multimodal).
When to Use Each Measure
Mean is best for symmetric distributions without outliers. Median is preferred for skewed data or when outliers are present (e.g., income data). Mode is useful for categorical data or identifying the most common value.
Related Tools
For more statistical analysis, try our Standard Deviation Calculator to measure data spread, or the Percentage Calculator for quick percentage computations.
Frequently Asked Questions
What is the difference between mean, median, and mode?
Mean is the sum divided by count. Median is the middle value when sorted. Mode is the most frequent value. For symmetric data they are similar; for skewed data they can differ significantly.
Is this calculator free, and do I need to sign up?
Yes, it is completely free with no sign-up. There are no usage limits and no paywalls.
Are my inputs saved or sent to any server?
No. Every calculation happens entirely in your browser. Nothing you type is uploaded, logged, or shared with us or any third party.