What would a men's size 40 pants be in womens?

A men's size 40 pants typically translates to a women's size 18 or 20, depending on the brand and fit. Women's sizing is generally smaller, so it's important to check specific sizing charts for each brand. Additionally, women's pants often have different cuts and styles, which can affect the overall fit. Trying on the pants or checking measurements is always recommended for the best fit.