# What is inverse CDF Normal Distribution Formula

Do anyone know what is Inverse Cumulative Distribution Function of Normal Distribution formula or equation? I am looking at Google but did not find any good answer.

If you regard $\text{erf}^{-1}$ as a special function ($\text{erf}$ is often regarded as a special function), then it could be written as a function of that, but one could as well call $\Phi^{-1}$ a special function.