  Electronic and nuclear stopping powers of superheavy ions with $\it{Z}$ up to
124 and $\it{A}$=300 in Al and U were estimated in the energy range of
0.01-0.20 MeV/u. The corresponding stopping powers were estimated using
stopping powers of ions with 6$\leq$$\it{Z}$$\leq$92 obtained from SRIM. The
results were compared with those deduced from Northcliffe and Schilling$'$s
stopping-power tables and with experimental data for $^{16}$O and $^{19}$F ions
in Al. Estimated electronic stopping powers of the light ions agreed better
with their experimental values above 0.10 MeV/u than the SRIM data.
