Average & Median Calculator
Paste or type a dataset to instantly see mean, median, quartiles, deviation, geometric and harmonic means, potential outliers, and a copy-ready summary.
We accept commas, spaces, new lines, scientific notation, and values such as 1,200 or -3.75. Any text that cannot be parsed as a number is safely ignored.
Decimal precision
Control how results are rounded for display. Calculations always use the full precision of your data.
2 dp
9 values analysed · 9 unique
Mean
11
Arithmetic average of all values
Median
10
Middle value after sorting
Q1 / Q3
6 · 16.5
25th and 75th percentiles
Range
18
Min 3 / Max 21
Std deviation
5.7
Population standard deviation
Mean absolute deviation
4.89
Average distance from the mean
Geometric mean
9.4
Requires all values to be positive
Harmonic mean
7.8
Useful for rates and ratios
Mode & distribution
No repeats
Every value appears exactly once in your dataset.
Interquartile range (IQR): 10.5 · Inner fences: -9.75 to 32.25