Linear Regression Calculator

Добавлено 2026-08-29Обновлено 2026-10-03

Fit a simple least-squares linear regression and report slope, intercept, r, r², slope CI, standard error and p-value.

✓ Runs locally in your browser✓ No account or dataset upload required✓ Effect sizes / uncertainty shown where appropriate

Paired X, Y valuesEnter one X,Y pair per line.

Regression equation

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Slope

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Intercept

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r²

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Slope p-value

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Slope 95% CI

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Residual SD

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Statistical output is a calculation aid. Check assumptions, study design and reporting requirements before drawing scientific conclusions.

Об этом инструменте

Fit a simple least-squares linear regression and report slope, intercept, r, r², slope CI, standard error and p-value.

Common uses

least squares regression calculatorslope intercept calculator statisticsregression equation calculatorr squared regression calculator

Как это работает

1Enter or paste the requested sample values, summary inputs or contingency data.
2Choose the method, confidence level or test options when available, then run the calculation.
3Review the estimate/test statistic together with p-value, confidence interval, effect size and method notes where available.

Does this statistics calculation upload my data?

No. Entered values are processed locally in your browser with JavaScript.

Should I interpret statistical significance by itself?

No. Review effect size, confidence intervals, study design, assumptions, sampling and multiplicity together with the p-value.