Rio Tinto Finance Usa F-3ASR Automatic shelf registration (foreign)

Exhibit 12

STATEMENTS OF COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

	Year ended December 31,
	2010			2009			2008			2007			2006
Earnings:
Income from continuing operations before taxes on income		20,577			7,860			9,178			9,836			10,240
Minority interests in pre-tax income of subsidiaries that have not incurred fixed charges		(270	)		(412	)		(177	)		(104	)		(16	)
Less: equity earnings		(1,101	)		(786	)		(1,039	)		(1,584	)		(1,378	)
Fixed charges added to earnings		751			988			1,694			614			212
Distributed income from equity investees		1,404			610			1,473			1,764			1,727
Amortization of capitalized interest		121			104			86			75			62
Total earnings		21,482			8,364			11,215			10,601			10,847
Fixed charges:
Interest expensed		671			929			1,618			538			160
Amount representative of the interest factor in rents		80			59			76			76			52
Total fixed charges added to earnings		751			988			1,694			614			212
Interest capitalized		182			198			203			122			60
Total fixed charges		933			1,186			1,897			736			272
Ratio of earnings to fixed charges		23.02			7.05			5.91			14.40			39.88

1