This tutorial explains how to use the SOLIDWORKS Costing tool, available in Professional and Premium versions, to estimate manufacturing costs and time. It demonstrates analysing components such as welded frames, cast parts, and sheet metal assemblies, showing how to adjust parameters like material, manufacturing method, batch size, and labour to compare costs. The tool provides detailed breakdowns of setup, operation, and custom costs, and supports processes including machining, injection moulding, and 3D printing. Users can customise templates for machines, materials, and operations, enabling accurate, data-driven decisions that reduce waste, improve efficiency, and optimise pricing strategies.