EXHIBIT 12 WARNER-LAMBERT COMPANY AND SUBSIDIARIES COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in millions) Years Ended December 31, Six Months Ended -------------------------------------------- June 30, 1994 1993 1992 1991 1990 1989 ---------------- ---- ---- ---- ---- ---- Earnings before income taxes and accounting changes $ 509.3 $ 318.5 $ 858.2 $ 221.5 $ 680.7 $ 591.6 Add: Interest on indebtedness- excluding amount capitalized 42.2 64.2 80.8 58.2 68.7 55.6 Amortization of debt expense .2 .5 .6 .4 .3 1.0 Interest factor in rent expense (a) 12.7 25.4 23.4 22.3 20.6 17.9 ------- ------- ------- ------- ------- ------- Adjusted Earnings $ 564.4 $ 408.6 $ 963.0 $ 302.4 $ 770.3 $ 666.1 ======= ======= ======= ======= ======= ======= Fixed Charges: Interest on indebtedness $ 42.2 $ 64.2 $ 80.8 $ 58.2 $ 68.7 $ 55.6 Capitalized interest 4.3 8.6 8.1 9.4 5.2 6.3 Amortization of debt expense .2 .5 .6 .4 .3 1.0 Interest factor in rent expense (a) 12.7 25.4 23.4 22.3 20.6 17.9 ------- ------- ------- ------- ------- ------- Total Fixed Charges $ 59.4 $ 98.7 $ 112.9 $ 90.3 $ 94.8 $ 80.8 ======= ======= ======= ======= ======= ======= Ratio of earnings to fixed charges 9.5 4.1(b) 8.5 3.3(c) 8.1 8.2 ======= ======= ======= ======= ======= ======= (a) One third of rental expense (which the company believes to be a reasonable approximation of the interest factor of such rental expense). (b) The company's ratio of earnings to fixed charges for 1993 would have been 9.5 excluding the restructuring charge of $525.2 million. (c) The company's ratio of earnings to fixed charges for 1991 would have been 9.4 excluding the restructuring charge of $544.0 million.