1 EXHIBIT 12.1 SDL, INC. STATEMENT SETTING FORTH THE COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHANGES (In thousands, except ratios) Years Ended December 31, Six Months Ended 1994 1995 1996 1997 1998 June 30, 1999 -------- -------- -------- -------- -------- ------------- Income (loss) before taxes $ 3,448 $ (897) $ 11,191 $(23,936) $ 8,986 $ 8,657 Add - Fixed charges 1,126 1,484 691 968 1,265 914 -------- -------- -------- -------- -------- -------- Income(loss) before taxes and fixed charges $ 4,574 $ 587 $ 11,882 $(22,968) $ 10,251 $ 9,571 ======== ======== ======== ======== ======== ======== Fixed charges: Interest $ 855 $ 1,103 $ 196 $ 248 $ 440 $ 501 expense Estimated interest component of rental expense 271 381 495 720 825 413 -------- -------- -------- -------- -------- -------- Total $ 1,126 $ 1,484 $ 691 $ 968 $ 1,265 $ 914 ======== ======== ======== ======== ======== ======== Ratio of earnings to fixed charges(1) 4.1x n/a 17.2x n/a 8.1x 10.5x (1) Earnings were insufficient to cover fixed charges by approximately $23.9 million and $0.9 million in the years ended December 31, 1997 and 1995, respectively.