EXHIBIT 12 JOHNSON CONTROLS, INC. COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in millions) Nine Months Ended June 30, 2000 ----------------- Net income.................................................... $321.2 Provision for income taxes.................................... 233.7 Undistributed earnings of partially-owned affiliates.......... (11.4) Minority interests in net earnings of subsidiaries............ 35.3 Amortization of previously capitalized interest............... 4.7 ------ 583.5 ------ Fixed charges: Interest incurred and amortization of debt expense.......... 105.2 Estimated portion of rent expense........................... 38.8 ------ Fixed charges................................................. 144.0 Less: Interest capitalized during the period.................. (6.9) ------ 137.1 ------ Earnings...................................................... $720.6 ====== Ratio of earnings to fixed charges............................ 5.0 ====== For the purpose of computing this ratio, "earnings" consist of (a) income from continuing operations before income taxes (adjusted for undistributed earnings or recognized losses of partially-owned affiliates, minority interest in earnings or losses of consolidated subsidiaries, and amortization of previously capitalized interest), plus (b) fixed charges, minus (c) interest capitalized during the period. "Fixed charges" consist of (a) interest incurred and amortization of debt expense plus (b) the portion of rent expense representative of the interest factor.