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, 1997 (AMOUNTS IN THOUSANDS) EARNINGS: Earnings before income taxes $151,212 Earnings of less than 50%-owned associated companies, net <805> Interest expense 16,899 Portion of rents representative of an interest factor 2,192 -------- ADJUSTED EARNINGS AND FIXED CHARGES $169,498 ======== FIXED CHARGES: Interest Expense $ 16,899 Capitalized interest 571 Portion of rents representative of an interest factor 2,192 -------- TOTAL FIXED CHARGES $ 19,662 ======== RATIO OF EARNINGS TO FIXED CHARGES 8.62 ======== 27