Hollister and A&F shirt sizes?

I can fit into a large at Hollister, would I fit into a large at Abercrombie and Fitch? also pants? I can't fit into Hollister pants. I almost fit in size 11, probably 12 but they never have those sizes at the store. do you think I could fit in A&F jeans since they are woman sizes and Hollister is juniors. please I need the help. I can not go to a store because I don't live near one. I have to order online.