You can use this p-value calculator to calculate the right-tailed, left-tailed, or two-tailed p-values for a given z-score. It also generates a normal curve and shades in the area that represents the p-value.

Free Standard Normal Distribution Calculator - find the probability of Z using standard normal distribution step-by-step

Calculator to find out the z-score of a normal distribution, convert between z-score and probability, and find the probability between 2 z-scores.

Use this P to Z calculator to easily convert P-values to Z-scores (standard scores) and see if a result is statistically significant. Supports one-tailed and two-tailed p-values.

Use this calculator to compute a two-tailed P value from any Z score, T score, F statistic, correlation coefficient (R), or chi-square value. Once you have obtained one of these statistics (from a publication or even another program) the P value helps interpret its statistical significance.

Easy to use calculator for converting a Z score to P-value using the cumulative probability density function (cumulative PDF) of the normal distribution. Convert Z to P, calculate P-value from Z-score of a normally distributed variable.

Calculator to compute p-value from Z-score or Z-score from p-value for a normal distribution. It also provides a diagram illustrating the area of the p-values.

Enter your z score value, and then press the button. If you're interested in using the z statistic for hypothesis testing and the like, then we have a number of other calculators that might help you. A simple calculator that generates a P Value from a z score.

What is a Z Score? A Z Score, also called as the Standard Score, is a measurement of how many standard deviations below or above the population mean a raw score is. Meaning in simple terms, it is Z Score that gives you an idea of a value’s relationship to the mean and how far from the mean a data point is.

This p value calculator allows you to convert your Z-statistic into a p value and evaluate it for a given significance level. Simply enter your Z score (we have a Z score calculator if you need to solve for the Z-statistic) and hit calculate. It will generate the p-value for that Z-statistic.