Durability governs the service life of reinforced concrete, yet practice often relies on accelerated tests whose results are not consistently established across mixtures. This study presents a single, side-by-side assessment of commonly used durability indices obtained by accelerated tests such as the chloride diffusion coefficient, the migration coefficient from the rapid chloride migration test, bulk electrical conductivity, charge passed in the rapid chloride permeability test, initial and secondary sorptivity, and accelerated carbonation measured on the same concretes made with four cement types and two water to cement ratios.. A clear pattern emerges: migration and conductivity align most closely with the diffusion coefficient, reflecting their common dependence on pore connectivity, tortuosity, and degree of saturation. The rapid chloride permeability test, while convenient for screening, primarily reflects bulk electrical behavior and exhibits larger scatter and a weaker practical link to the diffusion coefficient, consistent with its sensitivity to pore-solution chemistry, specimen heating, and conditioning. This limits its use for quantitative design unless results are correlated to diffusivity and calibrated by binder family. Sorptivity and carbonation are not reliable predictors of the diffusion coefficient at the dataset level, but they remain essential for exposures governed by moisture cycling and carbon dioxide ingress and help interpret variability in durability properties other than diffusion. Binder composition systematically affects both magnitudes and correlations, while a lower water to cement ratio and increased curing age reduce conductivity and diffusion in a manner modulated by the reaction kinetics of supplementary cementitious materials. Overall, this work provides a binder-resolved, calibration-ready mapping from migration and conductivity to the diffusion coefficient within a single, consistent experimental framework to support performance-based service-life design.