The number of years of experience required to become a consultant varies depending on the firm and the specific role. Entry-level consulting positions, often referred to as analyst or associate roles, typically do not require prior consulting experience. Many firms hire recent graduates or individuals with 1-3 years of work experience. However, more senior consulting roles, such as senior consultant or manager positions, may require several years of relevant experience, which can include consulting or industry-specific expertise. The exact requirements vary, so it's essential to review job listings and consult with specific firms to understand their expectations for different roles.