In the world of networking and professional communication, business cards serve as a vital tool for making lasting impressions. They encapsulate essential information about an individual or a business in a compact format. However, one of the most common questions that arise when designing or ordering business cards​ is: what is the size of a business card? This article will explore the standard sizes of business cards, variations across different countries, design considerations, and the importance of choosing the right size for your needs.