  We estimate the magnitude today of the primordial magnetic field originating
at the electroweak phase transition. We find that the field, which at the
electroweak phase transition is originally of order $10^{23}-10^{24}$ G
correlated over the Hubble scale, today is of order $10^{-14}$ G at a scale of
order 2 kpc. This result is consistent with the lower limit on the strength of
intergalactic magnetic fields obtained by Neronov and Vovk from observations of
TeV blazars. The field is non-helical. We compare our results with the helical
case discussed by Field and Carroll.
