# Inverse Hyperbolic Cosine Calculator

The calculator will find the inverse hyperbolic cosine of the given value.

The inverse hyperbolic cosine $y=\cosh^{-1}(x)$ or $y=\operatorname{acosh}(x)$ or $y=\operatorname{arccosh}(x)$ is such a function that $\cosh(y)=x$.

It can be expressed in terms of elementary functions: $y=\cosh^{-1}(x)=\ln\left(x+\sqrt{x^2-1}\right)$.

The domain of the inverse hyperbolic cosine is $[1,\infty)$, the range is $[0,\infty)$.

This function is neither even nor odd.

If the calculator did not compute something or you have identified an error, or you have a suggestion/feedback, please write it in the comments below.

Find $\operatorname{acosh}{\left(3 \right)}$.
$\operatorname{acosh}{\left(3 \right)}\approx 1.762747174039086$A