About Mean Median Mode Calculator
The mean, median and mode describe the centre of a data set in different ways: the mean uses every value, the median splits the sorted list in half, and the mode reports the most frequent value. When a list is skewed or has repeated entries, the three answers can tell different stories.
This calculator reports all three from a pasted list, handles data with several modes, and explains the method with your numbers. The sorted list, a frequency table and optional quartiles make it easier to check the result and to see why an average may not represent the typical value.
What this tool does
Three measures of centre
Mean, median and mode are reported together, with the count, sum, minimum, maximum and range.
Multimodal aware
When more than one value shares the highest frequency, all of them are listed; a list where nothing repeats is reported as having no mode.
Optional quartiles
Turn on Q1, Q3 and the interquartile range, computed with a stated median-of-halves method.
Frequency table
Every distinct value is listed with how often it occurs, which explains the mode and shows repeated entries at a glance.
Sorted list and method
The sorted data and the step-by-step calculation are shown, so the median and mode can be checked by eye.
How to use Mean Median Mode Calculator
- 01
Paste the numbers
Enter the list with commas, spaces or newlines between values; repeated values are fine.
- 02
Read the measures of centre
The mean is shown first, with the median and mode in the summary grid below.
- 03
Check the sorted list
The sorted values make the median and any clusters of repeated values easy to verify.
- 04
Turn quartiles on if needed
Enable Q1 and Q3 to see the interquartile range; the method used is stated beside the result.
- 05
Look at the frequency table
The table shows how often each value appears, which is the basis of the mode.
How this tool works
- Works with
- NUMBERS → MEAN / MEDIAN / MODE
- Processing
- Client-side, in your browser. Nothing is uploaded.
- Requirements
- Chrome, Edge, Firefox or Safari · JavaScript enabled
Limitations worth knowing
- Number lists are limited to 2,000 values per run.
- Quartiles follow the median-of-halves convention, so another tool may interpolate them differently.
- The mode is only meaningful for discrete or heavily repeated values; for continuous measurements every value may occur once.
Privacy and file handling
The list you paste is parsed and calculated with plain JavaScript inside your browser tab. Nothing is uploaded, logged or stored, and no request is made to a server while you work. Closing the page clears the input.
Read the full privacy policy