Exhibit 12
First Midwest Bancorp, Inc.
Ratio of Earnings to Fixed Charges (1)
(Dollar amounts in thousands)
	Years Ended December 31,
	2017			2016			2015			2014			2013
Ratio 1 - Including Interest on Deposits
Earnings available for fixed charges:
Net income from continuing operations	$	98,387		$	92,349		$	82,064		$	69,306		$	79,306
Add:
Income tax expense	89,567			46,171			37,747			31,170			48,715
Fixed charges	41,580			31,497			26,275			24,405			28,134
Total earnings available for fixed charges	$	229,534		$	170,017		$	146,086		$	124,881		$	156,155
Fixed charges (2):
Interest on deposits	$	16,184		$	9,863		$	9,527		$	10,377		$	11,901
Interest on borrowed funds	9,100			6,313			2,314			573			1,607
Interest on senior and subordinated debt	12,428			12,465			12,545			12,062			13,607
Total interest expense	37,712			28,641			24,386			23,012			27,115
Portion of rental expense representative   of interest factor	3,868			2,856			1,889			1,393			1,019
Total fixed charges	41,580			31,497			26,275			24,405			28,134
Preference security dividend (3)	—			—			—			—			—
Total fixed charges and preferred stock dividends	$	41,580		$	31,497		$	26,275		$	24,405		$	28,134
Ratio of earnings to fixed charges	5.52		x	5.40		x	5.56		x	5.12		x	5.55		x
Ratio of earnings to combined fixed charges and   preferred stock dividends	5.52		x	5.40		x	5.56		x	5.12		x	5.55		x
Ratio 2 - Excluding Interest on Deposits
Earnings available for fixed charges:
Net income from continuing operations	$	98,387		$	92,349		$	82,064		$	69,306		$	79,306
Add:
Income tax expense	89,567			46,171			37,747			31,170			48,715
Fixed charges	25,396			21,634			16,748			14,028			16,233
Total earnings available for fixed charges	$	213,350		$	160,154		$	136,559		$	114,504		$	144,254
Fixed charges (2):
Interest on borrowed funds	$	9,100		6,313			2,314			573			1,607
Interest on senior and subordinated debt	12,428			12,465			12,545			12,062			13,607
Portion of rental expense representative   of interest factor	3,868			2,856			1,889			1,393			1,019
Total fixed charges	25,396			21,634			16,748			14,028			16,233
Preference security dividend (3)	—			—			—			—			—
Total fixed charges and preferred stock dividends	$	25,396		$	21,634		$	16,748		$	14,028		$	16,233
Ratio of earnings to fixed charges	8.40		x	7.40		x	8.15		x	8.16		x	8.89		x
Ratio of earnings to combined fixed charges and   preferred stock dividends	8.40		x	7.40		x	8.15		x	8.16		x	8.89		x

⁽¹⁾   The ratio of earnings to fixed charges represents the number of times "fixed charges" are covered by "earnings."

⁽²⁾   "Fixed charges" consist of interest on outstanding debt plus one-third (the proportion deemed representative of the interest factor) of operating lease expense.

⁽³⁾   This is computed as the amount of the preferred dividend divided by (1 minus the effective income tax rate applicable to continuing operations).