The interest rate for federal judgments is based on U.S. Treasury securities at 1-year constant maturity. See 28 U.S.C. § 1961 and 40 U.S.C. § 258(e)(1).

The post-judgment interest rate for judgments entered from February  11 ,   2013  through February  17,  2013 is:

0.15%

A historical record of weekly Post-Judgment Interest Rates (based on U.S. Treasury securities at 1-year constant maturity) can be found at www.federalreserve.gov.