Average Calculator
Mean, median, mode, range and standard deviation.
Last updated: January 2025 · Built for the 2024–25 financial year
Inputs
Results
Mean (average)
12.714
Median
12.000
Mode
7
Sum
89
Count
7
Min
7
Max
22
Range
15
Std deviation
5.284
Results are estimates only. For financial advice, consult a licensed adviser.
Overview
Mean, median and mode in one step
Averages summarise a set of numbers in one figure. The arithmetic mean is the everyday 'average', but median and mode often tell a truer story when data is skewed — like Sydney house prices or athlete salaries.
This tool accepts comma- or space-separated values and returns mean, median, mode, range, sum and count, so you can sanity-check spreadsheets and survey results in seconds.
Formula
The three classical averages
mean = sum(x) / n median = middle value of sorted x (avg of two if n even) mode = value(s) appearing most often
Worked example
Dataset: 4, 8, 8, 10, 12, 14, 100
- Sum = 156, n = 7 → mean ≈ 22.29.
- Sorted middle value → median = 10.
- Value 8 appears twice → mode = 8.
Answer: Mean 22.29, median 10, mode 8 — the outlier 100 pulls the mean up.
Pro tips
- •Use the median for income, house prices and skewed data.
- •Mean works best when values cluster around a centre.
- •Mode is most useful for categorical or repeated data.