A walkthrough, end to end.
- 1
Paste or type your numbers separated by commas, spaces, or newlines.
- 2
The calculator returns mean, median, mode(s), range, sum, and count.
- 3
Use to quickly characterize any data set in school or at work.
Four measures
Mean: arithmetic average. Median: middle value (or average of two middle values for even count). Mode: most frequent value(s); empty when all values distinct. Range: max − min. Together they give a quick picture of the data.
What you can do with this.
Test scores summary
Quickly summarize a class's test results: mean and median tell you the typical score; mode shows clustering; range shows spread. Together they're more informative than any one alone.
Survey responses
Likert-scale survey (1–5 ratings): mode often the most useful (most common rating). Mean is a rough indicator. Median works well as the central response level.
Salary data
Mean is pulled up by high earners; median is robust. For comparing 'typical' incomes across groups, always prefer median. Mean is useful for total payroll budgeting.
Home prices in a neighborhood
Skewed by mansions and outliers. Median home price is the standard real-estate metric. Mean is rarely cited in housing reports — use median.
Sports performance
Player scores across a season. Mean = average per game (cited in stats). Median = typical performance. Mode = score they hit most often. Range = consistency proxy.
When all values are unique
Mode is undefined / empty (no value appears more than once). The calculator returns empty mode in this case. Mean and median still work fine.
Bimodal / multimodal data
Two or more values tied for most-frequent. The calculator returns all modes. Multimodal data often signals two underlying populations — investigate further.
Stats calculator 2026 — what's current
AI tools (ChatGPT, Claude, Excel Copilot) all compute these reliably. Standalone calculators win for speed on one-off lists and verification.
Frequently asked.
Mean for symmetric distributions; median for skewed (income, real estate prices, anything with outliers). Always check both and note when they diverge.
If all values appear exactly once, there's no mode. Some statisticians say 'the mode is every value' or 'no mode' depending on convention. The calculator returns empty in this case.
Mean and median work the same for both. Mode same. Standard deviation differs (Bessel correction for samples) — handled in the related Standard Deviation Calculator.
No. Calculations run entirely in your browser.