If all the ships were removed from the ocean, would there be a noticeable difference in the sea level?

Ships displace water. Every object placed in water will displace that volume.

There are thousands, if not millions of ships out there displacing enormous volumes of water. If all that volume was added up, would it lower the sea level by any real amount?

Steve H2015-03-13T23:12:33Z

The ocean is so vast that even if we removed all ships from it the difference would average out to be like ¼ millimetre worldwide lower sea level.

Jason2015-03-13T23:22:58Z

https://what-if.xkcd.com/33/