used by people in more than 230 countries!
Calculator: One-Tailed Area Under the Standard Normal Distribution
One-Tailed Area Under the Standard Normal Distribution Calculator
This calculator will tell you the one-tailed (right-tail) area under the standard normal curve, given a Z-score (i.e., the one-tailed probability from the z-score to positive infinity).
Please enter the necessary parameter values, and then click 'Calculate'.