EXHIBIT 12 PFIZER INC. AND SUBSIDIARY COMPANIES COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES YEAR ENDED DECEMBER 31, -------------------------------------------------- 1995 1994 1993 1992 1991 -------- -------- ------ -------- -------- (MILLIONS OF DOLLARS, EXCEPT RATIOS) Determination of Earnings: Income from continuing operations before provision for taxes on income, minority interests and cumulative effect of accounting changes.................................... $2,299.2 $1,830.5 $835.3 $1,541.0 $ 913.2 Less: Minority interests...................................... 7.0 4.6 2.6 2.7 3.2 Undistributed earnings/(losses) of unconsolidated subsidiaries........................................... (0.3) (0.7) 0.7 8.5 0.8 -------- -------- ------ -------- -------- Adjusted income........................................... 2,292.5 1,826.6 832.0 1,529.8 909.2 Fixed charges........................................... 231.9 158.4 135.6 130.1 155.2 -------- -------- ------ -------- -------- Total earnings as defined............................. $2,524.4 $1,985.0 $967.6 $1,659.9 $1,064.4 -------- -------- ------ -------- -------- -------- -------- ------ -------- -------- Fixed charges Interest expense (a)...................................... $ 192.5 $ 126.9 $106.5 $ 103.4 $ 130.1 Rents (b)................................................. 39.4 31.5 29.1 26.7 25.1 -------- -------- ------ -------- -------- Fixed charges........................................... 231.9 158.4 135.6 130.1 155.2 Capitalized interest...................................... 12.4 14.7 14.0 12.2 8.0 -------- -------- ------ -------- -------- Total fixed charges..................................... $ 244.3 $ 173.1 $149.6 $ 142.3 $ 163.2 -------- -------- ------ -------- -------- -------- -------- ------ -------- -------- Ratio of earnings to fixed charges.......................... 10.3 11.5 6.5 11.7 6.5 -------- -------- ------ -------- -------- -------- -------- ------ -------- -------- - ------------------------ (a) Interest expense includes amortization of debt discount and expenses. (b) Rents included in the computation consist of one-third of rental expense, which the Company believes to be a conservative estimate of an interest factor in its leases, which are not material. Note: In December 1995, the Company agreed to sell substantially all the net assets of the food science business. As a result, the food science business has been reported as a discontinued operation. The sale was completed in January 1996. The computations of the ratio of earnings to fixed charges for the years 1991 through 1994 have been restated to remove the income from operations of the Company's food science business.