EXHIBIT 12

F.N.B. Corporation and Subsidiaries

Computation of Ratio of Earnings to Fixed Charges

Dollars in thousands

Year Ended December 31	2009			2008		2007		2006		2005
Earnings:
Income before income taxes	$	50,380		$	42,832	$	98,139	$	97,186	$	77,105
Fixed charges, excluding interest on deposits		41,565			48,321		51,510		48,839		44,468
Less: Preferred stock dividends		(4,085	)		—		—		—		—
Subtotal		87,860			91,153		149,649		146,025		121,573
Interest on deposits		85,699			111,568		124,276		106,679		66,112
Total	$	173,559		$	202,721	$	273,925	$	252,704	$	187,685
Fixed charges:
Interest on borrowed funds	$	35,480		$	46,421	$	49,777	$	46,906	$	42,668
Interest component of rental expense		2,000			1,900		1,733		1,933		1,800
Preferred stock dividends		4,085			—		—		—		—
Subtotal		41,565			48,321		51,510		48,839		44,468
Interest on deposits		85,699			111,568		124,276		106,679		66,112
Total	$	127,264		$	159,889	$	175,786	$	155,518	$	110,580
Ratio of earnings to fixed charges:
Excluding interest on deposits		2.24x			1.89x		2.91x		2.99x		2.73x
Including interest on deposits		1.38x			1.27x		1.56x		1.62x		1.70x
Ratio of earnings to fixed charges and preferred stock dividends: Excluding interest on deposits		2.11x			1.89x		2.91x		2.99x		2.73x
Including interest on deposits		1.36x			1.27x		1.56x		1.62x		1.70x

128