SL Green Realty (SLG) S-3ASR Automatic shelf registration

Exhibit 12.1

SL Green Realty Corp.

Ratio of Earnings to Fixed Charges

	Nine Months Ended September 30,				Year Ended December 31,
	2012		2011		2011		2010		2009		2008			2007
Earnings
Income from continuing operations	$	76,707	$	108,233	$	128,350	$	108,077	$	1,619	$	26,028		$	62,061
JV cash distributions	132,692		117,540		133,199		584,564		79,523		525,372			128,305
Interest	248,268		207,361		286,299		231,182		235,366		295,652			263,682
Amortization of loan costs expensed	11,626		9,469		14,118		9,046		7,065		6,139			15,893
Portion of rent expense representative of interest	23,510		19,513		27,375		24,399		24,815		26,177			24,975
Total earnings	$	492,803	$	462,116	$	589,341	$	957,268	$	348,388	$	879,368		$	494,916
Fixed Charges
Interest	$	248,268	$	207,361	$	286,299	$	231,182	$	235,366	$	295,652		$	263,682
Interest capitalized	8,892		3,629		5,123		—		98		(179		)	5,118
Portion of rent expense representative of interest	23,510		19,513		27,375		24,399		24,815		26,177			24,975
Amortization of loan costs expensed	11,626		9,469		14,118		9,046		7,065		6,139			15,893
Total Fixed Charges	$	292,296	$	239,972	$	332,915	$	264,627	$	267,344	$	327,789		$	309,668
Ratio of earnings to fixed charges	1.69		1.93		1.77		3.62		1.30		2.68			1.60

Ratio of Earnings to Combined Fixed Charge and Preferred Stock Dividends

	Nine Months Ended September 30,				Year Ended December 31,
	2012		2011		2011		2010		2009		2008			2007
Earnings
Income from continuing operations	$	76,707	$	108,233	$	128,350	$	108,077	$	1,619	$	26,028		$	62,061
Joint Venture cash distributions	132,692		117,540		133,199		584,564		79,523		525,372			128,305
Interest	248,268		207,361		286,299		231,182		235,366		295,652			263,682
Amortization of loan costs expensed	11,626		9,469		14,118		9,046		7,065		6,139			15,893
Portion of rent expense representative of interest	23,510		19,513		27,375		24,399		24,815		26,177			24,975
Total earnings	$	492,803	$	462,116	$	589,341	$	957,268	$	348,388	$	879,368		$	496,916
Fixed Charges and Preferred Stock Dividends
Interest capitalized	$	248,268	$	207,361	$	286,299	$	231,182	$	235,366	$	295,652		$	263,682
Preferred stock dividends	23,004		22,634		30,178		29,749		19,875		19,875			19,875
Interest capitalized	8,892		3,629		—		—		98		(179		)	5,118
Portion of rent expense representative of interest	23,510		19,513		27,375		24,399		24,815		26,177			24,975
Amortization of loan costs expensed	11,626		9,469		14,118		9,046		7,065		6,139			15,893
Total Fixed Charges and Preferred Stock Dividends	$	315,300	$	262,606	$	363,093	$	294,376	$	287,219	$	347,664		$	329,543
Ratio of earnings to combined fixed charges and preferred stock dividends	1.56		1.76		1.62		3.25		1.21		2.53			1.50