Calculate the mean and median of any set of numbers, separated by spaces or commas.
Calculate the mean and median of any set of numbers, separated by spaces or commas.
Enter values above and click Calculate — results will appear here with the formula explained.
The arithmetic mean — the most common meaning of 'average' — adds every value together and divides by how many there are. It uses all the information in the data set but is sensitive to outliers: one extreme number can pull it up or down noticeably.
The median is the middle value once the data is sorted, which makes it robust against outliers. When the counts differ or one number dominates (like income data), compare the two figures above to understand your data better.
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The arithmetic mean — the most common meaning of 'average' — adds every value together and divides by how many there are. It uses all the information in the data set but is sensitive to outliers: one extreme number can pull it up or down noticeably. Formula: mean = (sum of all values) ÷ (number of values)
Average Calculator computes calculate the mean and median of any set of numbers, separated by spaces or commas. Formula: mean = (sum of all values) ÷ (number of values). Example: For 12, 18, 7, 25, 9: the sum is 71 and there.
Calculate the mean and median of any set of numbers, separated by spaces or commas. Formula: mean = (sum of all values) ÷ (number of values)
| Field | What to enter |
|---|---|
| Numbers (separate with commas, spaces or new lines) | e.g. 12, 18, 7, 25, 9 |
All fields use the exact formulas shown below — results include step-by-step breakdowns you can verify by hand.
The arithmetic mean — the most common meaning of 'average' — adds every value together and divides by how many there are. It uses all the information in the data set but is sensitive to outliers: one extreme number can pull it up or down noticeably.
The median is the middle value once the data is sorted, which makes it robust against outliers. When the counts differ or one number dominates (like income data), compare the two figures above to understand your data better.
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For 12, 18, 7, 25, 9: the sum is 71 and there are five numbers, so the mean is 71 ÷ 5 = 14.2. Sorted (7, 9, 12, 18, 25), the middle value is 12, which is the median.
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