How to use the Statistics Calculator
The statistics calculator gives mean, median, mode, range, quartiles and standard deviation for a list of numbers.
Open the Statistics Calculator →
What you need to enter
- Numbers (separated by commas or spaces)
The formula
Mean = sum ÷ count. Median = middle value of the sorted list. Mode = most frequent value.
Worked example
Using the default values in the calculator:
- Numbers (separated by commas or spaces): 12, 15, 18, 22, 22, 30
| Mean | 19.83333 |
| Median | 20 |
| Mode | 22 |
| Range | 18 |
| Minimum / Maximum | 12 / 30 |
| Count | 6 |
| Sum | 119 |
| Sample SD | 6.33772 |
| Q1 / Q3 | 15.75 / 22 |
Tips for better results
- Check for outliers.
- Use the median for skewed data.
Common mistakes to avoid
- Mixing units.
- Forgetting that there may be no mode.