The White Ferns reached their huge target with almost seven overs left.

Captain Meg Lanning, Alyssa Healy, Ash Gardner and Beth Mooney had earlier all made half-centuries in Australia's 321 all out in Lincoln.

It is a turnaround from New Zealand's first warm-up fixture, when they were beaten by Pakistan, the lowest-ranked team in the tournament.

Australia, meanwhile, arrive at the World Cup after going unbeaten against England during the multi-format Ashes series.

New Zealand open the tournament against West Indies in Tauranga on Friday (01:00 GMT), with England and Australia meeting once again in Hamilton at the same time on Saturday.

England play their final warm-up match against South Africa in Lincoln on Wednesday (21:30 GMT Tuesday).

Pace bowler Tash Farrant left the field ill in Monday's win over Bangladesh and is unlikely to play. Spinner Sophie Ecclestone, who missed that game entirely, could bowl against the Proteas but may not bat or field as England continue to take precautions with a calf problem.

In Tuesday's other warm-up fixture, India defeated West Indies by 81 runs.

India opener Smriti Mandhana, who was struck on the head and had to retire hurt in their game against South Africa on Sunday, was cleared to play and made 66 in India's 258, before West Indies were restricted to 177-9.

There will be live commentary on 20 World Cup games on BBC Radio 5 Live Sports Extra and the BBC Sounds app, including every England game, both semi-finals and the final in Christchurch on 3 April.

There will also be video highlights on the BBC Sport website and app.