  We derive the post-Newtonian limit of a general class of teleparallel gravity
theories, whose action is given by a free function of three scalar quantities
obtained from the torsion of the teleparallel connection. This class of
theories is chosen to be sufficiently generic in order to include the $f(T)$
class of theories as well as new general relativity as subclasses. To derive
its post-Newtonian limit, we first impose the Weitzenb\"ock gauge, and then
introduce a post-Newtonian approximation of the tetrad field around a Minkowski
background solution. Our results show that the class of theories we consider is
fully conservative, with only the parameters $\beta$ and $\gamma$ potentially
deviating from their general relativity values. In particular, we find that the
post-Newtonian limit of any $f(T)$ theory is identical to that of general
relativity, so that these theories cannot be distinguished by measurements of
the post-Newtonian parameters alone.
