The final properties of powder materials can be derived from as far back as the manufacturing of the initial powder. Therefore, it is essential to be able to measure and control powder properties. In this study, characterisation of different steel powders has been performed by automatic image analysis. The characteristic morphological parameters depend on the type of powder manufacturing process. Once these parameters have been recognised, differences between batches can readily be measured. In parallel, the bulk, flow and shear properties of the same powders were measured with a powder rheometer. Correlations between single particle characteristics, such as size and morphology, and bulk powder properties were established.