Charged‐particle stopping in warm dense matter (WDM) remains a key uncertainty in high‐energy‐density experiments and inertial confinement fusion (ICF) analysis, where state‐dependent electronic structure, partial ionization, and degeneracy modify energy‐loss mechanisms relative to cold‐matter baselines. In this work, a profile‐driven interface is formulated in which the electron‐density profile is treated as the primary state descriptor and is mapped to stopping‐model inputs through an energy‐dependent stripping distance derived from a density‐based potential. A common active domain is then used to define (i) an effective active‐electron number by radial integration and (ii) an effective mean excitation energy via a plasma‐frequency correlation, thereby enforcing internal consistency between charge participation and excitation scale. The closures are propagated through a transparent collisional kernel to obtain stopping powers and continuous slowing‐down approximation ranges for protons and tritons over 0.05–10 MeV in representative CH and C WDM states. Model‐to‐baseline ratios relative to Li–Petrasso stopping are reported to connect the results to widely used ICF reference practices, and closure‐parameter sensitivity is quantified through uncertainty envelopes that bound and . Across the studied states, the derived trends produce coupled variations in and that yield systematic, energy‐dependent departures from the Li–Petrasso baseline, with implications for DT‐relevant triton transport and for the interpretation of WDM stopping benchmarks. All figure‐ready datasets are provided to facilitate cross‐comparison with alternative stopping prescriptions and to support future validation against dedicated WDM experiments.