Normal Distribution Calculator
Calculate the probability of the normal distribution interval and the quantile of the specified cumulative probability, and display the curve.
Normal Distribution Calculator User manual
- Fill in the parameters or select the file according to the form, and check the unit and format first.
- The probability of a standard normal distribution between -1 and 1 is about 68.27%.
- Click the processing button to view the results, you can copy or download and save.
Calculation method and processing rules
The cumulative distribution is approximated by the error function, and the binary search quantum is used for the binary search quantile.
scope of use
Numerical values are approximated for learning, non-high-precision statistical software; quantile probability is limited to 0.000001 to 0.999999.
Will the input content be saved on the server?
This tool handles input in the browser, and does not upload files or form content. Typing practice scores are only saved in the native browser.
Why may the result be different from other tools?
Numerical values are approximated for learning, non-high-precision statistical software; quantile probability is limited to 0.000001 to 0.999999. Please compare the input unit, rounding method, applicable rules and data version first.



