Exhibit 12

FIRSTMERIT CORPORATION
Computations of Consolidated Ratios of Earnings to Fixed Charges (unaudited)
	Year Ended December 31,
(Dollars in thousands)	2015		2014		2013		2012		2011
Excluding Interest on Deposits:
Fixed Charges:
Interest Expense (excluding interest on deposits)	$	21,961	$	21,022	$	18,420	$	5,580	$	9,639
Interest Factor Within Rent Expense (1)	4,630		4,672		4,122		2,669		2,661
Total Fixed Charges	26,591		25,694		22,542		8,249		12,300
Preferred Stock dividends	5,876		5,876		5,337		—		—
Total Fixed Charges and Preferred Stock Dividends	$	32,467	$	31,570	$	27,879	$	8,249	$	12,300
Earnings:
Income Before Income Taxes	$	326,503	$	339,894	$	263,191	$	189,799	$	168,252
Fixed Charges - Excluding Preferred Stock Dividends	26,591		25,694		22,542		8,249		12,300
Total Earnings	$	353,094	$	365,588	$	285,733	$	198,048	$	180,552
Ratio of Earnings to Fixed Charges,
Excluding Interest on Deposits	13.28		14.23		12.68		24.01		14.68
Ratio of Earnings to Combined Fixed Charges,
Excluding Interest on Deposits	10.88		11.58		10.25		24.01		14.68
Including Interest on Deposits:
Fixed Charges:
Interest Expense	$	58,222	$	56,930	$	55,018	$	38,853	$	58,629
Interest Factor Within Rent Expense (a)	4,630		4,672		4,122		2,669		2,661
Total Fixed Charges	62,852		61,602		59,140		41,522		61,290
Preferred Stock dividends	5,876		5,876		5,337		—		—
Total Fixed Charges and Preferred Stock Dividends	$	68,728	$	67,478	$	64,477	$	41,522	$	61,290
Earnings:
Income Before Income Taxes	$	326,503	$	339,894	$	263,191	$	189,799	$	168,252
Fixed Charges - Excluding Preferred Stock Dividends	62,852		61,602		59,140		41,522		61,290
Total Earnings	$	389,355	$	401,496	$	322,331	$	231,321	$	229,542
Ratio of Earnings to Fixed Charges,
Including Interest on Deposits	6.19		6.52		5.45		5.57		3.75
Ratio of Earnings to Combined Fixed Charges,
Including Interest on Deposits	5.67		5.95		5.00		5.57		3.75
(1) The portion of rents shown as representative of the interest factor is one-third of total net operating lease expenses.