I'm extremely short..normally wear a 16 snug so I'd enjoy a comfortable 18...I'm only 4'10, do need to know length so I can decide if it's worth making new hem
They have a zipper at the bottom and i'm 5'4 and they went dang near to the ankle so tall people will love these! yes you would maybe have to do major heming!!
I really don't know it maybe depends if you are a tight or loose 18 because they are jeans so they fit like jean I would say I bought these and i'm a size 20 so i got the wrong size hope that helps they look like a big 18 I think.