Average Calculator
Calculate the arithmetic mean of a list of numbers, with sum, count, minimum, maximum and range.
Your inputs
Results
Average (arithmetic mean)
18
- Sum
- 108
- Count
- 6
- Minimum
- 4
- Maximum
- 42
- Range
- 38
✓Exact calculation — rounded only for display
What this calculator does
The mean adds all values and divides by how many there are. It is the most common “average”.
Formula and method
Mean = Σx ÷ n (summed with compensated addition for precision)
Worked example
Calculated by this tool with its default inputs:
Inputs
- Numbers (separated by commas, spaces or new lines): 4, 8, 15, 16, 23, 42
Results
- Average (arithmetic mean): 18
- Sum: 108
- Count: 6
- Minimum: 4
- Maximum: 42
- Range: 38
How to read the results
The mean is sensitive to outliers; compare it with the median for skewed data.
Assumptions and limitations
- Separate numbers with commas, spaces or new lines.
Questions
Mean vs median?
The median is the middle value and is not pulled by extreme values.
Methodology and verification
- Result type
- Exact mathematical calculation (rounded only for display)
- Formula version
- 1.0
- Automated verification
- 3 reference and validation test cases, checked against independently computed values. The site cannot be built if any of them fail.
- Editorial review
- Awaiting human editorial review. The explanation was drafted with AI assistance; the formula and examples are verified by the automated tests above.
Privacy
Everything you enter is calculated in this browser and is not sent to Numerith or anyone else. Inputs are added to a share link only if you choose to include them. Privacy policy