EXHIBIT 12.1 URS CORPORATION AND SUBSIDIARIES Computation of Ratio of Earnings to Fixed Charges (in thousands) April 30, April 30, 1999 1998 --------- --------- Income before taxes $22,467 $16,712 ======= ======= Fixed charges: Interest expense and amortization of debt discount on all indebt edness $ 5,325 $ 5,307 Appropriate portion (1/3) of rentals 5,533 5,067 ------- ------- Total fixed charges $10,858 $10,374 ======= ======= Income before taxes plus fixed charges $33,325 $27,086 ======= ======= Ratio of earnings to fixed charges 3.1 2.6 ======= =======