Exhibit 12

UNITED TECHNOLOGIES CORPORATION

AND SUBSIDIARIES

STATEMENT RE: COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

	Full year
(in millions of dollars)	2009			2008			2007			2006			2005
Fixed Charges:
Interest expense1	$	705		$	689		$	666		$	606		$	498
Interest capitalized		18			19			16			19			16
One-third of rents2		154			168			146			96			100
Total fixed charges	$	877		$	876		$	828		$	721		$	614
Earnings:
Income before income taxes	$	5,760		$	6,936		$	6,384		$	5,492		$	4,684
Fixed charges per above		877			876			828			721			614
Less: capitalized interest		(18	)		(19	)		(16	)		(19	)		(16	)
		859			857			812			702			598
Amortization of interest capitalized		17			9			8			8			10
Total earnings	$	6,636		$	7,802		$	7,204		$	6,202		$	5,292
Ratio of earnings to fixed charges		7.57			8.91			8.70			8.60			8.62

1 Pursuant to the guidance in the Income Taxes Topic of the FASB ASC, interest related to unrecognized tax benefits recorded was approximately $21 million, $39 million, $56 million, $38 million and $25 million for the years 2009, 2008, 2007, 2006 and 2005, respectively. The ratio of earnings to fixed charges would have been 7.75, 9.32, 9.33, 9.08 and 8.98 for the years 2009, 2008, 2007, 2006 and 2005, respectively, if such interest were excluded from the calculation.

2 Reasonable approximation of the interest factor.