Average Calculator
Calculate the mean, median, mode, and range of any set of numbers instantly.
Average (Mean)
30
5 numbers
Average Formula
Average (Mean) = Sum of all values ÷ Count of values
Example
For the numbers 10, 20, 30, 40, 50: Sum = 150, Count = 5, Average = 150 ÷ 5 = 30.
Frequently Asked Questions
How do I calculate the average?
Add all numbers together and divide by the count. For 10, 20, 30: (10+20+30) ÷ 3 = 20. This is also called the arithmetic mean or average.
What is the difference between mean, median, and mode?
Mean is the arithmetic average. Median is the middle value when sorted. Mode is the most frequent value. Mean is most common but can be skewed by outliers.
What is a weighted average?
A weighted average multiplies each value by its weight before summing, then divides by total weight. For example, grades where the final is worth 40% and homework 60%.