  The tilt angle, current helicity and twist of solar magnetic fields can be
observed in solar active regions. We carried out estimates of these parameters
by two ways. Firstly, we consider the model of turbulent convective cells
(super-granules) which have a loop floating structure towards the surface of
the Sun. Their helical properties are attained during the rising process in the
rotating stratified convective zone. The other estimate is obtained from a
simple mean-field dynamo model that accounts magnetic helicity conservation.
The both values are shown to be capable to give important contributions to the
observable tilt, helicity and twist.
