Conversion Factors Chart

This chart shows the approximate caliper of a single sheet for papers of various grades and basis weights. Caliper is expressed in thousandths of an inch.

CONVERSION FACTORS

To Convert			Multiply OFFSET
To Convert			Basis Weight by:
OFFSET 25 x 38	to	BOND/WRITING 17 x 22	0.39
		COVER 20 X 26	0.55
		VEL. BRISTOL 22½ x 28½	0.68
		INDEX 25½ x 30½	0.82
		TAG 24 x 36	0.91


To Convert			Multiply BOND/WRITING
To Convert			Basis Weight by:
BOND/WRITING	to	OFFSET 25 x 38	2.54
17 x 22		COVER 20 X 26	1.39
		VEL. BRISTOL 22½ x 28½	1.71
		INDEX 25½ x 30½	2.08
		TAG 24 x 36	2.31


CONVERSION FACTORS
To Convert			Multiply COVER
To Convert			Basis Weight by:
COVER 20 x 26	to	OFFSET 25 x 38	1.83
		BOND/WRITING 17 x 22	0.72
		VEL. BRISTOL 22½ x 28½	1.23
		INDEX 25½ x 30½	1.5
		TAG 24 x 36	1.66


To Convert			Multiply BRISTOL
To Convert			Basis Weight by:
VELLUM BRISTOL	to	OFFSET 25 x 38	1.48
22½ x 28½		BOND/WRITING 17 x 22	0.58
		COVER 20 x 26	0.81
		INDEX 25½ x 30½	1.21
		TAG 24 x 36	1.35

CONVERSION FACTORS
To Convert			Multiply INDEX
To Convert			Basis Weight by:
INDEX	to	OFFSET 25 x 38	1.22
25½ x 30½		BOND/WRITING 17 x 22	0.48
		COVER 20 x 26	0.67
		VEL. BRISTOL 22½ x 28½	0.82
		TAG 24 x 36	1.11


To Convert			Multiply TAG
To Convert			Basis Weight by:
TAG 24 x 36	to	OFFSET 25 x 38	1.1
		BOND/WRITING 17 x 22	0.43
		COVER 20 x 26	0.6
		VEL. BRISTOL 22½ x 28½	0.74
		INDEX 25½ x 30½	0.9