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Both calculators run independently — change the inputs on either side to compare results.

Descriptive Statistics Calculator

Compute key summary statistics — mean, median, variance, and standard deviation — from any list of numbers. Ideal for quickly summarizing datasets in research, class assignments, or data analysis.

Data Set (comma separated)

Calculate

Data Type

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Statistics

Correlation Coefficient Calculator

Compute the Pearson correlation coefficient (r) between two variables from paired summary statistics — n, Σxy, Σx, Σy — to measure how strongly they move together linearly. The number ranges from −1 (perfect negative linear relationship) through 0 (no linear relationship) to +1 (perfect positive linear relationship).

Number of Pairs

Sum of XY

Sum of X

Sum of Y

Sum of X²

Sum of Y²

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Key differences

	Descriptive Statistics Calculator	Correlation Coefficient Calculator
Category	Statistics	Statistics
Inputs required	3	6
Result	Result	Correlation Coefficient
What it does	Compute key summary statistics — mean, median, variance, and standard deviation — from any list of numbers. Ideal for quickly summarizing datasets in research, class assignments, or data analysis.	Compute the Pearson correlation coefficient (r) between two variables from paired summary statistics — n, Σxy, Σx, Σy — to measure how strongly they move together linearly. The number ranges from −1 (perfect negative linear relationship) through 0 (no linear relationship) to +1 (perfect positive linear relationship).