P-Value Calculator

Convert a Z statistic to a left-, right-, or two-tailed normal p-value.

P-value

0.049996

4.9996%

Z statistic1.96

TestTwo-tailed

Normal CDF0.975002

Calculated from the standard normal distribution; this does not establish practical significance or causality.

About the P-Value Calculator

Convert a Z statistic to a left-, right-, or two-tailed normal p-value.

It runs entirely in your browser — nothing you type is sent to a server — and the result updates as you edit the inputs. Estimates are for educational and informational purposes only; see ourdisclaimer.

Common searches

hypothesis test
significance
normal distribution

Related calculators

Z-Score CalculatorStandardize a data point and estimate its normal-distribution tail probabilities.Confidence Interval CalculatorCalculate a normal-approximation confidence interval for a sample mean.

Browse more inMath.