  In these proceedings we discuss the relation between the kinetic and the
on-shell schemes for the bottom and the charm quarks and present the methods
for the calculation of the mass relation to higher orders in perturbative QCD.
The bottom mass in the kinetic scheme is a pivotal input parameter in the
inclusive determination of $|V_{cb}|$ from $B\to X_c \ell \nu_\ell$ decays. By
combining the relation between the kinetic and the on-shell mass with well-know
results for the $\overline{\mathrm{MS}}$-on-shell conversion, we obtain a
prediction for $m_b^\mathrm{kin}$ based on precise determinations of
$\overline{m}_b(\overline{m}_b)$.
