P-Value Calculator
Find one-tailed or two-tailed p-values from a z or t statistic.
P-value
0.049996
Formula
P-value = tail area from the chosen distribution beyond the test statistic.
Enter a z or t statistic, choose left-tailed, right-tailed, or two-tailed, and use degrees of freedom when you select the t distribution.
How to Use
Enter a z or t statistic, choose left-tailed, right-tailed, or two-tailed, and use degrees of freedom when you select the t distribution. Enter the Test statistic, Distribution, Tail, and Degrees of freedom values and review the P-value outputs after you calculate.
- Open the calculator : Start with P-Value Calculator.
- Enter values : Fill in the required inputs and any optional settings.
- Review the result : Read the output and use the about page for more detail if needed.
Common Questions
What formula does the P-Value Calculator use?
P-value = tail area from the chosen distribution beyond the test statistic.