This empirical study investigates the determinants of capital adequacy among financial institutions in Nigeria. Using a comprehensive dataset and econometric techniques, the research explores various factors influencing the capital adequacy ratios of banks and other financial entities in the Nigerian market. Key determinants such as asset quality, earnings retention, risk management practices, and regulatory compliance are analyzed to understand their impact on capital adequacy levels. The findings contribute to the understanding of the financial stability and resilience of Nigeria's banking sector, offering insights for policymakers, regulators, and industry stakeholders to enhance capital adequacy standards and promote a robust financial system.