How long does it take to get from Norway to Australia traveling by boat?

I know it's an ocean liner, and it will probably be the shortest route. My husband just started a new job and we lost contact by phone and I don't know when to expect him in australia.

How big is the boat? If you're paddling a kayak, it will take quite a while. If you're on a Cunard liner, it will take several weeks.

Yes, it entirely depends on the size of the boat. Also, which way is this person going? Going east, you can go around Africa or through the Suez canal. Going west, you can go around Cape Horn or through the Panama Canal.

If I remember it correctly it's about 4-6 weeks. It depends on the route (passing Suez channel or not), the speed of the ship and if it goes directly to Australia, and to which port in Oz: a few days less to Perth, a bit longer to Sydney or anywhere on the east coast.