Electroweak effective couplings for future precision experiments

The leading hadronic effects in electroweak theory derive from vacuum polarization which are non-perturbative hadronic contributions to the running of the gauge couplings, the electromagnetic αem(s) and the SU(2)L coupling α2(s). I report on my recent package alphaQED [1], which besides the effective fine structure constant αem(s) also allows for a fairly precise calculation of the SU(2)L gauge coupling α2(s). I will briefly review the role, future requirements and possibilities. Applied together with the Rhad package by Harlander and Steinhauser [2], the package allows to calculate all SM running couplings as well as running sin2 Θ versions with state-of-the-art accuracy. (orig.)