1 Exhibit 12.1 NEENAH FOUNDRY COMPANY, INC. COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES Predecessor Company --------------------------------------------- One Month Five Months Year Three Three Fiscal Year Ended March 31, Ended Ended Ended Months Ended Months Ended ------------------------------- April 30, September 30, September 30, December 31, December 31, 1994 1995 1996 1997 1997 1997 1998 1997 1998 ----------------------------------------------------------------------------------------------------- (Dollars in Thousands) Income before income taxes and extraordinary item $10,794 $22,570 $28,818 $32,305 $4,294 $ 8,366 $22,803 $3,125 $ 190 Fixed Charges 1,278 907 416 402 2,947 10,530 28,591 5,940 10,066 ----------------------------------------------------------------------------------------------------- Earnings 12,072 23,477 29,234 32,707 7,241 18,896 51,394 9,065 10,256 ===================================================================================================== Interest expense 1,049 624 84 39 2,919 10,358 28,096 5,840 9,907 Interest portion of rent expense 229 283 332 363 28 172 495 100 174 ----------------------------------------------------------------------------------------------------- Fixed charges 1,278 907 416 402 2,947 10,530 28,591 5,940 10,081 ===================================================================================================== Ratio of earnings to fixed charges 9.4x 25.9x 70.3x 81.4x 2.5x 1.8x 1.8x 1.5x 1.0x =====================================================================================================