How to use the Average Calculator
- Enter at least one number, separating values with commas, spaces, or line breaks.
- Check that every token is a valid number; invalid text is identified instead of silently ignored.
- Compare the mean with the median to see whether unusually high or low values may be pulling the mean.
How the calculation works
Arithmetic mean = sum of all values ÷ number of valuesThe median is the middle value after sorting. With an even count, it is the mean of the two middle values. Minimum and maximum show the endpoints of the entered data.
Example calculation
For 12, 18, 23, 7, and 10, the sum is 70 and the count is 5. The mean is 70 ÷ 5 = 14. Sorted values are 7, 10, 12, 18, 23, so the median is 12.
How to interpret the result
The mean uses every value and is sensitive to outliers. The median describes the middle position and can be more representative for skewed data such as incomes or home prices.
Notes and assumptions
- Every entered value has equal weight.
- Scientific notation and decimal values are accepted.
- The calculator does not infer missing data or remove outliers.
Average Calculator questions
What is the difference between mean and median?
The mean is the sum divided by the count. The median is the middle sorted value and is less affected by extremes.
Can I enter negative numbers?
Yes. Negative values, zero, decimals, and scientific notation are supported.
How do I calculate a weighted average?
Multiply each value by its weight, add those products, and divide by the sum of the weights. This tool calculates an unweighted mean.