The transition from traditional legacy cities to smart cities represents a pivotal juncture in urban development and governance. As cities worldwide grapple with the challenges of rapid urbanization, resource constraints, and the need to enhance the quality of life for their citizens, the concept of a “smart city” has gained significant attention. This paper delves into the multifaceted process of urban transformation, shedding light on the essential criteria and considerations that guide a city’s conversion into a smart city. To provide a comprehensive framework for the conversion process, this paper outlines a computer program utilized to measure the readiness to transform a traditional city into a smart city. The transformation criteria encompass technological innovation, data-driven decision-making, infrastructure development, and effective governance models. It explores the significance of citizen engagement, privacy concerns, and sustainability in shaping the transformation process. Case studies of potential cities in Egypt that are ready to be successfully transformed into smart cities are presented to illustrate how these criteria have been applied in real-world contexts. Ultimately, this paper provides a roadmap for city planners, policymakers, and urban stakeholders, offering guidance on the essential elements and considerations required to navigate this complex and transformative journey successfully. In an era where urbanization continues to accelerate, the transition to smart cities is not merely a futuristic concept but a pressing necessity for ensuring the sustainability and prosperity of our cities.