The number of belts a woman needs can vary depending on personal preference and the types of clothing and occasions for which she needs belts. However, as a general guide, most women may benefit from having at least a few different types of belts that can be paired with different types of outfits. A basic belt, such as a black or neutral-colored leather belt, is a versatile option that can be worn with many different types of outfits, including pants, skirts, and dresses. This can be worn in formal or casual settings.