I am platinum on RCI.What percs do I get on Celebrity's captains club?

Look here . You will get the same perks as a Captain's Club Select member.

In addition, you can also look here. I am in the reverse situation as you... I am a Captain's Club Select member, which makes me eligible for Crown & Anchor Platinum status.

Do you presently have a Captain's Club number? We each had C&A numbers from a couple of earlier cruises on RCCL, and our C&A status was upgraded automatically. If you con't have a CC number, call the number in the link Dave provided.

Thank you both.

You're welcome. Actually, I need to append my post. Even if you already have a Captain's Club number, give Celebrity a call anyway. Although our status was automatically upgraded, it took several months. I wouldn't want you to miss out on the Select perks if your Celebrity cruise is coming soon.