Mean, Median, Mode & Range Calculator
Enter any set of numbers to find the mean, median, mode, range, sum, and count. Works with any dataset size.
Mean, Median, and Mode
Mean: Sum divided by count. Sensitive to outliers. Median: Middle value when sorted — resistant to outliers, better for skewed data. Mode: Most frequent value. Use mean for symmetric data (test scores), median for skewed data (income, home prices), and mode for categorical data.
When to Use Each
The median US household income ($75K) is more representative than the mean ($105K) because billionaires skew the average up. In symmetric distributions (heights, test scores), mean and median are nearly equal. A large gap between mean and median indicates skewed data.
Average calculator gets 100K+ monthly searches — mostly students. Search volume spikes 40% during the school year. Adding mean/median/mode captures the statistics class searches too.