Average Calculator
Calculate mean, median, sum, minimum, maximum, and count from any set of numbers. Enter numbers separated by commas, spaces, or new lines.
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Statistics
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Mean (Average)
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Median
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Sum
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Count
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Minimum
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Maximum
Formulas
Mean = Sum of all values ÷ Count
Median = Middle value (or average of two middle values) when sorted
Range = Maximum − Minimum
Median = Middle value (or average of two middle values) when sorted
Range = Maximum − Minimum
Frequently Asked Questions
What is the difference between mean and median?
Mean: add all values and divide by count. Median: sort values and find the middle one. For [1, 2, 3, 4, 100]: mean = 110 ÷ 5 = 22, but median = 3. The single outlier (100) pulled the mean far from where most values cluster. The median is unaffected by outliers, making it more useful for skewed data like incomes or house prices.
When should I use median instead of mean?
Use median when: (1) data has significant outliers (a few very high or very low values), (2) data is ordinal (rankings, ratings), (3) you're describing typical experience (median household income is more informative than mean). Use mean when: data is normally distributed without outliers, or you need to use the value in further calculations (weighted averages, statistical tests).
How do I find the average of a set of numbers?
Sum all numbers and divide by the count. For 5, 8, 12, 3, 7: sum = 35, count = 5, mean = 7. For large datasets, paste your numbers into the box above — any separator (comma, space, line break) works. The calculator handles up to thousands of values.