Exhibit 12

BERKSHIRE HATHAWAY INC.

Calculation of Ratio of Consolidated Earnings to Consolidated Fixed Charges

(Dollars in millions)

				Year Ended December 31,
	Six Months Ended June 30, 2012			2011			2010			2009			2008			2007
Net earnings attributable to Berkshire Hathaway	$	6,353		$	10,254		$	12,967		$	8,055		$	4,994		$	13,213
Income tax expense		2,949			4,568			5,607			3,538			1,978			6,594
Earnings attributable to noncontrolling interests		244			492			527			386			602			354
Earnings from equity method investments		—			—			(50	)		(427	)		—			—
Dividends from equity method investees		—			—			20			132			—			—
Fixed charges		1,654			3,219			3,084			2,279			2,276			2,202
Earnings available for fixed charges	$	11,200		$	18,533		$	22,155		$	13,963		$	9,850		$	22,363
Fixed charges
Interest on indebtedness (including amortization of debt discount and expense)	$	1,387		$	2,664		$	2,558		$	1,992		$	1,963		$	1,910
Rentals representing interest and other		267			555			526			287			313			292
	$	1,654		$	3,219		$	3,084		$	2,279		$	2,276		$	2,202
Ratio of earnings to fixed charges		6.77	x		5.76	x		7.18	x		6.13	x		4.33	x		10.16	x