Exhibit 12

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

	Three Months Ended				Year Ended December 31,
	March 31, 2007				2006				2005				2004				2003				2002
Net earnings	$	2,595			$	11,015			$	8,528			$	7,308			$	8,151			$	4,286
Income tax expense		1,388				5,505				4,159				3,569				3,805				2,059
Minority interests in earnings		89				258				104				59				64				14
Equity in earnings of MidAmerican Energy Holdings Company		—				—				(523	)			(237	)			(429	)			(359	)
Fixed charges*		532				1,979				867				875				614				840
Earnings available for fixed charges	$	4,604			$	18,757			$	13,135			$	11,574			$	12,205			$	6,840
Investment and derivative gains, pretax, included in Earnings available for fixed charges	$	586			$	2,635			$	5,408			$	3,471			$	4,083			$	838
Fixed charges*
Interest on indebtedness (including amortization of debt discount and expense)	$	463			$	1,724			$	723			$	721			$	472			$	725
Rentals representing interest and other		69				255				144				154				142				115
	$	532			$	1,979			$	867			$	875			$	614			$	840
Ratio of earnings to fixed charges*		8.65x				9.48x				15.15x				13.23x				19.88x				8.14x
Ratio of earnings, excluding investment and derivative gains, to fixed charges*		7.55x				8.15x				8.91x				9.26x				13.23x				7.15x

	Three Months Ended March 31, 2007				2006				2005				2004				2003				2002
Finance and financial products	$	153			$	571			$	598			$	602			$	337			$	551
Utilities and energy		298				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:

Three Months Ended March 31, 2007

2006

2005

2004

2003

2002

Including investment and derivative gains

51.27x

50.64x

46.61x

40.19x

42.84x

21.76x

Excluding investment and derivative gains

44.04x

42.84x

26.50x

27.48x

28.10x

18.86x