Quick Reference Chart for Picas, Points, Inches, Millimeters

" 	= inch
'	= foot
in	= inch
ft	= foot
p	= pica 
pt	= point(s)
pts	= points
mm	= millimeter


Type size/leading:
10/12 = 10 pt type set with 12 pt leading

Combo pica/point sizes:
8p3  = 8 picas and 3 points or 99 pts
		  

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IN		MM	
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1		25.4	
1.25		31.75	
1.50		38.099
1.75		44.449
2.00		50.8


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IN		P	common		PTS	common
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1		 6.022	 6		 72.270	 72
1.25		 7.528	 7.5		 90.337	 90
1.50		 9.033	 9		108.405	108
1.75		10.539	10.5		126.472	126
2.00		12.044	12		144.540	144


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1 ft = 12 inches = 72 picas
1 in = 6 picas = 72 points
1 pica = 12 points
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INCH		POINTS	PICAS,POINTS
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.25		18		1p6  
.50		36		3p
.75		54		4p6


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1.25 inches =  7p6  (7 picas and 6 points)
1.50 inches =  9p
1.75 inches = 10p6
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MILLIMETER	INCH (approx.)
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  1		 0.039
 10		 0.39
100		 3.93
200		 7.87
300		11.81
400		15.74
500		19.68



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Decimals/Fractions (INCHES)
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1/32	=	.03125
1/16	=	.0625
 1/8	=	.125
 1/4	=	.25
 1/2	=	.50
 3/4	=	.75


Quick reference chart
courtesy of
About.com Desktop Publishing
http://desktoppub.about.com