Welcome to the online normal distribution curve calculator. While it cannot be customized like NormDist, it is provided for individuals who prefer an online version.

Please remember that, like  NormDist, this program assumes a normal/Gaussian distribution.

Also, a Detection Theory calculator is available, as well as an normal curve range visualization tool.

Additionally, Z-scores can be calculated online. This functionality requires JavaScript to be active, and may require popup-blocking to be removed for computerpsych.com.

Value:  Standard ScoreScaled ScoreStanineT-ScoreNormal Curve Equivalent (NCE)Z-ScorePercentile Submit