Compare the plug shapes, voltage and frequency in New Zealand and Sweden, and find out which adapter you need before you travel.
Adapter required
Yes — coming from New Zealand, you will need a travel adapter for Sweden. New Zealand uses Type I plugs, and Sweden uses Type C/Type F, so the pin shapes will not fit any wall socket.
New Zealand (home)
Sweden (destination)
Electrical specifications in Sweden
Voltage
Frequency
More about plugs in Sweden
In Sweden, the standard power plug is Type C and Type F. The country runs on 230 volts at 50 Hz. That means wall sockets in Sweden can be one of 2 different shapes — Type C, Type F, and your plug needs to physically match the socket to fit.
Full Sweden plug guide