📐 Statistics
Average Calculator — Mean, Median, Mode & More
Calculate the average (mean), median, mode, standard deviation, variance, range, and sum of any set of numbers. Enter values separated by commas or spaces.
Frequently Asked Questions
What is the difference between mean, median, and mode? +
The mean (average) is the sum divided by count. The median is the middle value when sorted. The mode is the most frequent value. Use median when your data has outliers — it's less affected than the mean.
When should I use mean vs median? +
Use the mean when data is evenly distributed without extreme outliers. Use the median for income, house prices, or any data with extreme high/low values that would distort the average.
How is standard deviation calculated? +
Standard deviation measures how spread out numbers are from the mean. A low SD means values cluster near the mean; a high SD means they are spread out. It's calculated as the square root of the variance.