The dollar was last up 1.22 percent against the Swedish crown at 9.0164 crowns after touching 9.0424 crowns, its highest level since early March 2009.
"You sort of expect the central bank to say something like, 'policy is easy, just the way we like it,'" said Steven Englander, managing director and global head of G10 FX strategy at Citigroup in New York. "To take a step further and endorse further weakness ... conveys to the market that you're supremely dovish."
The dollar hit a three-month high against the yen of 105.00 yen, and was last up 0.47 percent against the Japanese currency at 104.95 yen. Analysts said a rise in U.S. Treasury yields on expectations that the Federal Reserve will increase interest rates in December were behind the move.
"The market is getting more and more comfortable with the idea that the Fed will pull the trigger in December," said Boris Schlossberg, managing director of FX strategy at BK Asset Management in New York.
Schlossberg said U.S. economic data on Thursday showing an upward revision in U.S. durable goods orders for August and stronger-than-expected U.S. pending home sales for September supported prevailing expectations for a December rate increase.