This article suggests and conceptualizes a methodology for calculating capacity in production processes, applicable to both the manufacturing industry and service companies. Its relevance lies in the fact that a correct dimensioning of the productive capacities of a company is a fundamental aspect, not only for its operations department, but also for the rest of the functional areas of the organization. The study begins with a reflection of the main concepts associated with measuring the capacity of production processes; where the main activities of the methodology stand out: description of the process, time study, capacity calculation and planning; in addition to the concepts of bottleneck and profitability. And it ends with the application of the step-by-step methodology on a case raised about a venture about the sale of fresh sugar cane juice on weekends at a farmer market. In short, it is important to mention that the article also aims to serve as a tool to contribute to the development of the Know-How competencies of future industrial engineers given its importance recognized by the employers sector (Ramírez-Mora, 2023). And, that it serves as an instrument to facilitate the study of students during their hours of independent work in their study plans. (Ramírez-Mora, 2023).