Correlation Calculator
Correlation Calculator is a free online Math & Statistics tool that pearson and Spearman correlation, r², and the least-squares regression line for paired data instantly in your browser. Paste your data, adjust the options and get the result in real time — no installation, no sign-up, and nothing is ever uploaded to a server.
How to use: Correlation Calculator →
Description
Pearson and Spearman correlation, r², and the least-squares regression line for paired data.
- Because everything is computed client-side, Correlation Calculator is safe to use with sensitive data such as API keys, tokens or private logs.
How to use
Using Correlation Calculator takes three steps:
- Paste your data into the input box (or load the example).
- Configure the options to match your target format or scenario.
- Copy, download or inspect the output — it updates live as you type.
Examples
These ready-made examples show typical inputs and the exact output Correlation Calculator produces for them.
1, 2.1 2, 4.0 3, 5.9 4, 8.1 5, 9.8 6, 12.2
One x,y pair per line; returns Pearson r, Spearman rho, r squared and the least-squares line.
Use cases
Common situations where Correlation Calculator helps:
- Pearson and Spearman correlation, r², and the least-squares regression line for paired data.
- Because everything is computed client-side, Correlation Calculator is safe to use with sensitive data such as API keys, tokens or private logs.
FAQ
What is Correlation Calculator?
Correlation Calculator pearson and Spearman correlation, r², and the least-squares regression line for paired data. It runs entirely in your browser, so your data stays private.
Is Correlation Calculator free to use?
Yes. Correlation Calculator is free, unlimited and works without registration or installation.
Does my data get uploaded?
No. All processing happens locally in your browser; nothing is sent to any server.