"Most equity markets gained, as did oil, helping pro-risk currencies the Australian dollar and the New Zealand dollar rise further," said Imre Speizer, market strategist at Westpac Banking Corp.
Speizer said a break above 72.30-72.40 US cents, which was a technically significant level, "would have bullish implications for the days ahead."
The kiwi has gained this week after stronger-than-expected third-quarter inflation figures suggested a cut in interest rates expected from the Reserve Bank next month may be the last in its easing cycle.
The kiwi dollar fell to 93.60 Australian cents from 94.02 cents late yesterday and edged up to 58.88 British pence from 58.71 pence. It rose to 65.86 euro cents from 65.66 cents, fell to 74.73 yen from 74.87 yen and rose to 4.8668 yuan from 4.8615 yuan.