Enter up to 8 numbers to instantly compute key statistics: the arithmetic mean (average), total sum, minimum, maximum, range, and standard deviation. Whether you're grading scores, analyzing data, or just need a quick average, this tool gives you a full statistical summary in one click.
The mean is the sum of all values divided by the count. The median is the middle value when sorted. The mode is the most frequent value. This calculator computes the mean (arithmetic average).
Standard deviation measures how spread out values are from the mean. A low std. dev. means values are close together; a high one means they are spread out. It's widely used in statistics, finance, and science.
Formulas: Mean = Σx / n | Sum = x₁ + x₂ + ... + xₙ | Range = Max − Min | Variance = Σ(x − mean)² / n | Std. Dev. = √Variance
Example: Values: 10, 20, 30, 40 → Mean = 25 | Sum = 100 | Min = 10 | Max = 40 | Range = 30 | Std. Dev. ≈ 11.18.
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