There is an increasing interest in the economic and financial knowledge of the public. Former Federal Reserve Chairmen Greenspan and Bernanke often stressed the importance of improved economic and financial knowledge of the general public. Recent survey results from the 2012 National Financial Capability Study provide a rich source of information on the state of financial capability of Americans. In this paper we examine the actual knowledge of individuals, investigate how they self-assess their financial capability and knowledge, and analyze the way these relate to financial outcomes. We also examine the way these measures relate to demographic variables. We find that there is room for improvement in financial knowledge, decisions, and capability, which varies among demographic groups and suggest measures for such improvement.