How many inches of mercury are there at an atmospheric pressure of 14.5 psig?

in. HG = P / 0.491
                            in. Hg = P / 0.491
                            in. Hg = 14.5 / 0.491 in. Hg = 29.53
Where,
                            Hg      inches in mercury
                            P        pressure (psi)
                            0.491 constant (psi @ 1 in. of Hg)