Is P-Value Calculator free to use?

Yes, P-Value Calculator is completely free. No account, no sign-up, and no hidden fees required.

Is my data safe when using P-Value Calculator?

Your data never leaves your device. All processing happens locally in your browser — nothing is uploaded to any server.

Calculators

Compute one- and two-tailed p-values from a Z or Student's t statistic, with significance verdict at α = 0.05, 0.01, 0.001

Trusted by 10k+ developers

Test

Test statistic

p-value

0.049996

α = 0.05

Significant

α = 0.01

Not significant

α = 0.001

Not significant

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