Average Calculator

Free Average Calculator — Mean, Median, Mode, Range & Standard Deviation

Basic statistics calculations are needed constantly — in school, business analysis, research, and everyday problem solving. This free Average Calculator computes the mean, median, mode, range, sum, count, and standard deviation from any list of numbers you provide. Simply enter your numbers and all statistics are calculated instantly.

Enter a list of numbers (separated by commas, spaces, or new lines) and click Calculate. The tool computes all key descriptive statistics simultaneously — no need to run separate calculations for each metric.

Understanding multiple statistical measures together gives a much more accurate picture of your data than any single number. A dataset with mean=50 and standard deviation=1 is very different from one with mean=50 and standard deviation=30, even though both have the same average.

Statistics Explained

Mean (Average). Sum of all values divided by count. The most common measure of central tendency. Sensitive to outliers.

Median. The middle value when sorted. Half the values are above, half below. More robust than mean for skewed datasets.

Mode. The most frequently occurring value. A dataset can have multiple modes (bimodal, multimodal) or no mode if all values are unique.

Range. Maximum minus minimum. Simple measure of spread. Single outlier can make range misleading.

Standard Deviation. Average distance of each value from the mean. Low SD = values clustered around mean. High SD = values widely spread.

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Frequently Asked Questions