Statistical Range Calculator
Calculate the range and related measures of spread from your data. The range is the simplest measure of variability, the difference between the largest and smallest values, along with the mid-range and coefficient of range for additional context.
The range is the most basic measure of statistical dispersion. It is calculated as the difference between the maximum and minimum values in a dataset: Range = Max - Min. While easy to compute and understand, the range is highly sensitive to outliers because it depends on only two data points.
The mid-range is the average of the maximum and minimum: Mid-Range = (Max + Min) / 2. It provides a rough estimate of the center of the data but, like the range, is influenced by extreme values. In symmetric distributions, the mid-range approximates the mean.
The coefficient of range (also called the coefficient of dispersion) normalizes the range by dividing by the sum of the maximum and minimum: (Max - Min) / (Max + Min). This dimensionless ratio allows you to compare the relative spread of datasets measured in different units or on different scales.