EXHIBIT 12

BERKSHIRE HATHAWAY INC.
Statement Regarding Calculation of Ratio of Consolidated Earnings to Consolidated Fixed Charges
(Dollars in millions)

	Nine Months Ended		Year Ended December 31,
	September 30, 2007		2006		2005			2004			2003			2002
Net earnings	$	10,266	$	11,015	$	8,528		$	7,308		$	8,151		$	4,286
Income tax expense		5,202		5,505		4,159			3,569			3,805			2,059
Minority interests in earnings		267		258		104			59			64			14
Equity in earnings of MidAmerican Energy Holdings Company		—		—		(523	)		(237	)		(429	)		(359	)
Fixed charges*		1,624		1,979		867			875			614			840
Earnings available for fixed charges	$	17,359	$	18,757	$	13,135		$	11,574		$	12,205		$	6,840
Investment and derivative gains, pretax, included in Earnings available for fixed charges	$	4,579	$	2,635	$	5,408		$	3,471		$	4,083		$	838
Fixed charges*
Interest on indebtedness (including amortization of debt discount and expense)	$	1,413	$	1,724	$	723		$	721		$	472		$	725
Rentals representing interest and other		211		255		144			154			142			115
	$	1,624	$	1,979	$	867		$	875		$	614		$	840
Ratio of earnings to fixed charges*		10.69x		9.48x		15.15x			13.23x			19.88x			8.14x
Ratio of earnings, excluding investment and derivative gains, to fixed charges*		7.87x		8.15x		8.91x			9.26x			13.23x			7.15x

* Includes fixed charges of finance and financial products and utilities and energy businesses as follows:

	Nine Months Ended
	September 30, 2007		2006		2005		2004		2003		2002
Finance and financial products	$	459	$	571	$	598	$	602	$	337	$	551
Utilities and energy		927		1,070		—		—		—		—

     Excluding fixed charges of finance and financial products and utilities and energy businesses the ratios of earnings to fixed charges were as follows:

Nine Months Ended

September 30, 2007

2006

2005

2004

2003

2002

Including investment and derivative gains

67.11x

50.64x

46.61x

40.19x

42.84x

21.76x

Excluding investment and derivative gains

47.87x

42.84x

26.50x

27.48x

28.10x

18.86x