The U.S. Federal Reserve System's less bellicose-than-anticipated comments continued to affect the dollar.
The dollar index fell by 0.1% to 100.17, after earlier declining to a 5 1/2-week low.
Dollar traded nearly 0.2% lower against the yen - at 112.54 yen, that was the fourth day of decline after the Fed repeated plans for three rate hikes this year, fewer than the market participants expected.
The euro rose by 0.2% to $1.0763 due to the defeat of the anti-European Union candidate Geert Wilders at the election in the Netherlands. As a result, the single European currency rose to almost a six-week high on Friday.