Using the National Financial Capability Survey, we examine differences among men and women in financial knowledge, behavior, and well-being. We find that women are less financially knowledgeable than men. Women are less willing than men to take financial risks and have more credit cards than men. However, women are equally likely to pay their credit cards in full every month and are equally likely to save for retirement. More differences by gender arise when we separate men and women by family type. Unmarried women with dependent children are worse-off and likely have other financial stresses.