1 EXHIBIT 12.01 MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES FOR THE YEAR ENDED DECEMBER 31, 2000 (AMOUNTS IN THOUSANDS) EARNINGS: Earnings before income taxes $ 168,821 Earnings of less than 50%-owned associated companies, net (419) Interest expense 41,895 Portion of rents representative of an interest factor 2,968 --------- ADJUSTED EARNINGS AND FIXED CHARGES $ 213,265 ========= FIXED CHARGES: Interest expense $ 41,895 Capitalized interest 2,107 Portion of rents representative of an interest factor 2,968 --------- TOTAL FIXED CHARGES $ 46,970 ========= RATIO OF EARNINGS TO FIXED CHARGES 4.54 ========= 31