New York Consolidated Laws, Judiciary Law - JUD § 27. [Computation of judgments and accounts]

(a) Except as provided in subdivision (b) of this section, judgments and accounts must be computed in dollars and cents.  In all judgments or decrees rendered by any court for any debt, damages or costs, in all executions issued thereupon, and in all accounts arising from proceedings in courts the amount shall be computed, as near as may be, in dollars and cents, rejecting lesser fractions;  and no judgment, or other proceeding, shall be considered erroneous for such omissions.

(b) In any case in which the cause of action is based upon an obligation denominated in a currency other than currency of the United States, a court shall render or enter a judgment or decree in the foreign currency of the underlying obligation.  Such judgment or decree shall be converted into currency of the United States at the rate of exchange prevailing on the date of entry of the judgment or decree.