According to the womens jeans size chart provided by jeans.com, a size 34 in womens jeans corresponds to a waist measurement of 37.75 inches. However, its important to note that jeans sizes can vary between brands and styles, and some brands may use vanity sizing, which means that the actual measurements of the jeans may differ from what is labeled on the waistband. Therefore, its always a good idea to check the specific brands size chart or try on the jeans before purchasing to ensure a proper fit.