University of Michigan released its survey on consumer confidence, showing a rise to 102.0 in March from 99.7 in February, beating expectations of 99.2.
As of 02:26 GMT, the dollar index, tracking the greenback against a basket of major rivals, rose to 90.21 from the opening of 90.14, with a session-high at 90.25, and a low at 89.89.
The economic conditions gauge in the same survey rose to 122.8 from 114.9 in February, while economic expectations fell to 88.6 from 90.
One-year inflation outlook rose to 2.9% from 2.7%, while five-year outlook stayed the same at 2.5%.