Average Calculator

Calculate the arithmetic mean, median, and mode of a data set in one step. Weighted average supported. Free online average calculator.

Frequently Asked Questions

What is the difference between mean and median?
The mean is the sum of all values divided by the count, while the median is the middle value when data is sorted. The median is less affected by outliers.
How is a weighted average calculated?
A weighted average multiplies each value by its weight, sums the products, and divides by the total weight. It's useful when some values matter more than others.
Can I control the number of decimal places?
Yes, you can set the desired number of decimal places for the result to get the precision you need.
Verified 2026 formulas