Martin Marietta Materials (MLM) 10-K 2007 FY Annual report

EXHIBIT 12.01

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

For the Year Ended December 31, 2007

(add 000, except ratio)
EARNINGS:
Earnings before income taxes	$	378,580
(Earnings) of less than 50%-owned associated companies, net		(2,748	)
Interest Expense*		60,893
Portion of rents representative of an interest factor		22,244
Adjusted Earnings and Fixed Charges	$	458,969
FIXED CHARGES:
Interest Expense*	$	60,893
Capitalized Interest		3,873
Portion of rents representative of an interest factor		22,244
Total Fixed Charges	$	87,010
Ratio of Earnings to Fixed Charges		5.27

*Interest Expense excluded interest expense of $12 related to liabilities accrued under Financial Accounting Standards Board Interpretation Number 48,Accounting for Uncertainty in Income Taxes, An Interpretation of FAS 109.