Relations between the LyC escape fraction f_esc(LyC) in low-redshift LyC leaking galaxies derived by the method with the use of SED fits and constraints from the observed H β and H α equivalent widths, and (a) the Lyα escape fraction f_esc(Lyα), (b) the separation V_sep between the Lyα profile peaks, (c) the stellar mass M_⋆, (d) the [O iii]λ5007/[O ii]λ3727 emission-line flux ratios. In all panels, the galaxies from this paper are shown by red symbols and from Izotov et al. (2016a, b, 2018a, b, 2021a), Borthakur et al. (2014), Chisholm et al. (2017), Flury et al. (2022a), and Xu et al. (2022) are represented by blue symbols. LyC leakers and galaxies with upper limits of LyC emission are shown by filled circles and open circles with downward arrows, respectively. The solid line in (a) is the equality line and the solid line in (b) represents the relation from Izotov et al. (2018b).