Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share

Schedule of the reconciliation of basic weighted average common shares outstanding to diluted weighted average common shares outstanding

	Three Months Ended March 31,
(dollars and shares in millions, except per share data)	2018		2017
Net income attributable to Amphenol Corporation shareholders	$	265.6	$	224.9
Basic weighted average common shares outstanding		303.7		306.6
Effect of dilutive stock options		12.3		9.8
Diluted weighted average common shares outstanding		316.0		316.4
Earnings per share attributable to Amphenol Corporation shareholders:
Basic	$	0.87	$	0.73
Diluted	$	0.84	$	0.71