You Do Need power plug adapter while traveling from Åland Islands to New Zealand.

Here is Why You Need An Adapter

The outlet and plug type used in New Zealand is I and in Åland Islands are C and F. This is how they look like.

In Åland Islands, outlets of type C and F are in use.

Type C

Type F

In New Zealand, outlets of type I are in use.

Type I

I am from

going to