Exhibit 12

PPG INDUSTRIES, INC. AND CONSOLIDATED SUBSIDIARIES

Computation of Ratio of Earnings to Fixed Charges

(Dollars in millions)

	Year ended December 31
	2017		2016		2015		2014		2013
Earnings:
Earnings before income taxes and net earnings in equity affiliates		$1,991		$773		$1,735		$1,216		$1,177
Plus:
Fixed charges exclusive of capitalized interest	200		215		210		278		280
Amortization of capitalized interest	6		5		5		5		4
Adjustments for equity affiliates	8		2		73		5		1
Total		$2,205		$995		$2,023		$1,504		$1,462
Fixed Charges:
Interest expense including amortization of debt discount/premium and debt expense		$105		$125		$125		$187		$196
Rentals - portion representative of interest	95		90		85		91		84
Fixed charges exclusive of capitalized interest		$200		$215		$210		$278		$280
Capitalized interest	7		8		9		16		10
Total		$207		$223		$219		$294		$290
Ratio of earnings to fixed charges	10.7		4.5		9.2		5.1		5.0

Note: The financial information of all prior periods has been reclassified to reflect discontinued operations.