How many passengers can an airbus A330 carry?

This can be different per model, since there are different models of the Airbus A330. It also depends on how many classes they have in the plane.

A330-200:

Max. amount of seats:

380

When 2 classes:

293

When 3 classes: 253

A330-300:

Max. amount of seats: 440

When 2 classes: 335

When 3 classes: 295