EXHIBIT 12.1

JOHNSON CONTROLS INTERNATIONAL PLC

RATIO OF EARNINGS TO FIXED CHARGES

The following table shows our ratio of earnings to fixed charges for the fiscal years ended September 30, 2017, 2016, 2015, 2014 and 2013.

	Year Ended September 30,
(Dollars in millions)	2017			2016			2015			2014			2013
Income from continuing operations attributable to     Johnson Controls	$	1,654		$	732		$	814		$	906		$	1,146
Income tax provision	705			197			71			93			468
Income attributable to noncontrolling interests	199			132			46			38			44
Income from equity affiliates	(240		)	(174		)	(80		)	(110		)	(96		)
Distributed income of equity affiliates	78			78			38			28			62
Amortization of previously capitalized interest	14			12			10			9			6
Fixed charges less capitalized interest	637			387			356			315			330
Earnings	$	3,047		$	1,364		$	1,255		$	1,279		$	1,960
Fixed charges:
Interest incurred and amortization of debt expense	$	500		$	310		$	302		$	268		$	293
Estimated portion of interest in rent expense	164			94			77			75			79
Fixed charges	$	664		$	404		$	379		$	343		$	372
Less: Interest capitalized during the period	(27		)	(17		)	(23		)	(28		)	(42		)
Fixed charges less capitalized interest	$	637		$	387		$	356		$	315		$	330
Ratio of earnings to fixed charges	4.6			3.4			3.3			3.7			5.3

For the purposes of computing this ratio, "earnings" consist of net income attributable to Johnson Controls from continuing operations before income taxes, income attributable to noncontrolling interests and income from equity affiliates plus (a) amortization of previously capitalized interest, (b) distributed income from equity affiliates and (c) fixed charges, minus interest capitalized during the period. "Fixed charges" consist of (i) interest incurred and amortization of debt expense plus (ii) the portion of rent expense representative of the interest factor.