Eaton Corporation plc

2012 Annual Report on Form 10-K

Item 15(b)

Exhibit 12

Ratio of Earnings to Fixed Charges

	Year ended December 31
(In millions)	2012			2011			2010			2009			2008
Income from continuing operations before income taxes and   noncontrolling interests in consolidated subsidiaries	$	1,251		$	1,553		$	1,036		$	303		$	1,140
Adjustments
Income of equity investees	(2		)	(2		)	(14		)	(6		)	(11		)
Distributed income of equity investees	19			3			15			9			1
Interest expensed	165			154			162			170			192
Amortization of debt issue costs	74			4			4			5			2
Estimated portion of rent expense representing interest	66			65			57			59			58
Amortization of capitalized interest	12			10			10			13			13
Adjusted income from continuing operations before   income taxes	$	1,585		$	1,787		$	1,270		$	553		$	1,395
Fixed charges
Interest expensed	$	165		$	154		$	162		$	170		$	192
Interest capitalized	23			18			8			7			13
Amortization of debt issue costs	74			4			4			5			2
Estimated portion of rent expense representing interest	66			65			57			59			58
Total fixed charges	$	328		$	241		$	231		$	241		$	265
Ratio of earnings to fixed charges	4.83			7.41			5.50			2.29			5.26