Most Helpful Guy
If you don't know what size pants you wear in men's you will have to try them on. Women's sizes literally make no god damn sense there is no rulebook so sizes vary massively depending on where you are. Men's sizes are in contrast very organized. Size 30 means size 30 everywhere for pants. The size in men's pants are waist sizes. Go to the store try out some pants that look about the right size and discover your clothing size in men's. Once you have that you can freely shop for whatever pants you like in men's everywhere because men's pants sizes are based on physical waist size not arbitrary beauty standards that change between stores.
Most Helpful Girl
You'd need to provide a waist and hip measurement. A 5'4 woman could be a size 2 or 18