Exhibit 12 ROCKWELL INTERNATIONAL CORPORATION COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES SIX MONTHS ENDED MARCH 31, 1997 (In millions, except ratio) EARNINGS AVAILABLE FOR FIXED CHARGES: Income from continuing operations before income taxes....... $ 495 Adjustments: Undistributed income of affiliates....................... (4) Minority interest in loss of subsidiaries................ 7 498 Add fixed charges included in earnings: Interest expense......................................... 10 Interest element of rentals.............................. 28 38 Total earnings available for fixed charges.................. $ 536 FIXED CHARGES: Fixed charges included in earnings.......................... $ 38 Capitalized interest........................................ 4 Total fixed charges...................................... $ 42 RATIO OF EARNINGS TO FIXED CHARGES (1)......................... 13 (1) In computing the ratio of earnings to fixed charges, earnings are defined as income from continuing operations before income taxes adjusted for minority interest in income or loss of subsidiaries, undistributed earnings of affiliates, and fixed charges exclusive of capitalized interest. Fixed charges consist of interest on borrowings and that portion of rentals deemed representative of the interest factor.