The dollar traded virtually unchanged against the euro and yen amid fresh worries about the Japanese and Chinese economies and ongoing tensions in Ukraine.
At 2100 GMT on Monday (0800 on Tuesday AEDT) the euro was at $US1.3875, compared to $US1.3874 late on Friday.
The dollar bought 103.26 yen, barely up from 103.24, while the euro was at 143.28 yen, compared to 143.31 yen on Friday.
The greenback was flat against the Swiss franc. at 0.8777 franc per dollar.
Only the British pound among majors changed much: falling to $US1.6642 from $US1.6711 against the greenback.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
Earlier, a lowered estimate of Japan's fourth quarter growth, and weak inflation and trade data in China, boosted concerns about their ability to help the global economy strengthen.
The march toward a secession vote showdown in Ukraine's Crimea also left traders cautious.
