Mathlean · Online math workspace

Correlation calculator

Calculate Pearson correlation for paired numerical observations.

How to use this calculator

Edit both lists, keeping corresponding observations in the same positions. The starter has correlation 1.

Tap the math below to edit it and see the result. Once a result is ready, press Tab on a hardware keyboard to accept it. Outside a matrix, Return completes the line; the phone math keyboard has the same Return action.

Try it here

Correlation⁡([1,2,3],[2,4,6])\operatorname{Correlation}\left([1,2,3],[2,4,6]\right)

Interactive tools require JavaScript. You can read the guide and example without it.

What to know

Correlation is undefined for a constant sequence and does not establish causation.

Mathlean combines visual mathematical input with computation and canvas tools. Results depend on the expression and available engine support; check important answers independently.

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