Web Tools
Statistics Calculator
Compute descriptive statistics from a list of numbers. Calculates mean, median, mode, standard deviation, variance, range, percentiles, IQR, geometric mean, and harmonic mean. Supports comma, space, newline, or tab separated input. Runs entirely in your browser — your data never leaves your machine.
statistics math mean median standard-deviation calculator
Published May 31, 2026
All interactive tools run entirely in your browser. Your data never leaves your device.
How It Works
Enter a list of numbers separated by commas, spaces, newlines, or tabs. The tool parses the input, filters invalid values, and computes a comprehensive set of descriptive statistics.
Features
- Central tendency: mean, median, mode
- Spread: min, max, range
- Dispersion: population variance, standard deviation, interquartile range
- Percentiles: Q1 (25th), Q2 (50th), Q3 (75th)
- Advanced: geometric mean (positive numbers), harmonic mean (non-zero)
- Flexible input: comma, space, newline, or tab separated numbers
- Configurable precision: 0-10 decimal places
- Invalid filtering: non-numeric values silently ignored
- Sorted values: see your data in ascending order
- 5 examples: exam scores, temperatures, dice rolls, Fibonacci, stock prices
- Private: all computation runs in your browser — no data transmitted
Use Cases
- Analyzing test scores or survey results
- Computing summary statistics for datasets
- Quick statistical checks during data analysis
- Verifying calculations from spreadsheets
- Educational tool for learning descriptive statistics