The kiwi rallied 1% to touch a two-month high of $0.6383 after the decision.
Elsewhere, data overnight showed U.S. job openings dropped to their lowest level in nearly two years in February, suggesting that labour market conditions were finally easing.
The dollar index , which measures the currency against six peers, eased to a fresh two-month low of 101.43, after dropping 0.5% overnight.
In the U.S. bond market, the two-year Treasury yield, which typically moves in step with interest rate expectations, was up 2.6 basis points at 3.860%, after sliding 14 basis points on Tuesday.
The yield on 10-year Treasury notes was up 1.8 basis points to 3.355%, having slipped 9 basis points overnight.