1 Exhibit 12 COOPER INDUSTRIES, INC. COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES (Dollar Amounts in Thousands) (Unaudited) Three Months Ended March 31, Year Ended December 31, --------- ----------------------- 2001 2000 2000 1999 1998 1997 1996 ---- ---- ---- ---- ---- ---- ---- Interest Expense $ 25,100 $ 18,300 $ 100,300 $ 55,200 $101,900 $ 90,400 $ 142,100 Capitalized Interest 375 1,200 3,946 -- -- -- -- Estimated Interest Portion of Rent Expense 4,574 3,827 15,614 13,948 12,352 10,864 10,035 --------- --------- --------- --------- -------- --------- --------- Fixed Charges $ 30,049 $ 23,327 $ 119,860 $ 69,148 $114,252 $ 101,264 $ 152,135 ========= ========= ========= ========= ======== ========= ========= Income From Continuing Operations Before Income Taxes $ 86,800 $ 129,100 $ 549,900 $ 518,600 $523,600 $ 483,200 $ 470,700 Add: Fixed Charges 29,674 22,127 115,914 69,148 114,252 101,264 152,135 Dividends From Less Than 50% Owned Companies -- -- -- -- -- -- 287 Less: Equity in (Earnings) / Losses of Less Than 50% Owned Companies (702) (1,289) (3,367) (1,069) 595 (320) (1,609) --------- --------- --------- --------- -------- --------- --------- Earnings Before Fixed Charges $ 115,772 $ 149,938 $ 662,447 $ 586,679 $638,447 $ 584,144 $ 621,513 ========= ========= ========= ========= ======== ========= ========= Ratio of Earnings to Fixed Charges 3.9x 6.4x 5.5x 8.5x 5.6x 5.8x 4.1x -15-