EXHIBIT 12.01 MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES FOR THE YEAR ENDED DECEMBER 31, 2001 EARNINGS: Earnings before income taxes $158,439 Earnings of less than 50%-owned associated companies, net 273 Interest Expense 46,792 Portion of rents representative of an interest factor 4,602 -------- ADJUSTED EARNINGS AND FIXED CHARGES $210,106 ======== FIXED CHARGES: Interest Expense $ 46,792 Capitalized Interest 6,040 Portion of rents representative of an interest factor 4,602 -------- TOTAL FIXED CHARGES $ 57,434 ======== RATIO OF EARNINGS TO FIXED CHARGES 3.66 ========