Paper Weights And Conversions

 

Digital Marketing Services
Common Paper Weights And Conversion

Digital Marketing provides this page for reference purposes only. While we work hard to provide accurate information, Digital Marketing assumes no liability for the accuracy listed below. All trademarks or product names mentioned are the sole property of their respective owners.

 

Basis Weight ("Category") Table

Type Paper Basic Size - 500 Sheets
"Bond"
Ledger, Mimeo, Duplicator, Rag Paper
17" x 22"
"Offset"
Book, Text, Coated Paper
25" x 38"
"Cover" 20" x 26"
"Tag Stock" 24" x 36"
"Index" 25-1/2" x 30-1/2"

 

Basis Weight ("Equivalent") Table

The Values in the table below are intended to serve as a guide only. They should not be used as specifications because there are variances within the same basis weight due to other characteristics of the papers. Similar weight papers may vary between different paper manufacturers.

To use the chart read across to find the equivalent, example 16 Lb. Bond paper weight is equivalent to 40 Lb. Offset paper weight

Bond

Offset
Text

Cover

Tag

Index

Points

Caliper
(inches)*

Millimeters

Metric
(grams/sq meter)

16

40

22

37

33

3.2

.0032

0.081

60.2 gsm

18

45

24

41

37

3.6

.0036

0.092

67.72 gsm

20

50

28

46

42

3.8

.0038

0.097

75.2 gsm

24

60

33

56

50

4.8

.0048

0.12

90.3 gsm

28

70

39

64

58

5.8

.0058

0.147

105.35 gsm

29

73

40

62

60

6

.0060

0.152

109.11 gsm

31

81

45

73

66

6.1

.0061

0.155

116.63 gsm

35

90

48

80

74

6.2

.0062

0.157

131.68 gsm

36

90

50

82

75

6.8

.0068

0.173

135.45 gsm

39

100

54

90

81

7.2

.0072

0.183

146.73 gsm

40

100

56

93

83

7.3

.0073

0.185

150.5 gsm

43

110

60

100

90

7.4

.0074

0.188

161.78 gsm

44

110

61

102

92

7.6

.0076

0.193

165.55 gsm

47

120

65

108

97

8

.0078

0.198

176.83 gsm

53

135

74

122

110

9

.0085

0.216

199.41 gsm

54

137

75

125

113

9

.009

0.229

203.17 gsm

58

146

80

134

120

9.5

.0092

0.234

218.22 gsm

65

165

90

150

135

10

.0095

0.241

244.56 gsm

67

170

93

156

140

10.5

.010

0.25

252.08 gsm

72

183

100

166

150

11

.011

0.289

270.9 gsm

76

192

105

175

158

13

.013

0.33

285.95 gsm

82

208

114

189

170

14

.014

0.356

308.52 gsm

87

220

120

200

180

15

.015

0.38

312 gsm

105

267

146

244

220

18

.0175

0.445

385.06 gsm

 

International Metric Paper Sizes - ISO Standard

SIZE

WIDTH
(mm)

HEIGHT
(mm)

WIDTH
(inches)

HEIGHT
(inches)

A0

841 mm

1,189 mm

33.11 in.

46.81 in.

A1

594 mm

841 mm

23.39 in.

33.11 in.

A2

420 mm

594 mm

16.54 in.

23.39 in.

A3

297 mm

420 mm

11.69 in.

16.54 in.

A4

210 mm

297 mm

8.27 in.

11.69 in.

A5

148 mm

210 mm

5.83 in.

8.27 in.

A6

105 mm

148 mm

4.13 in.

5.83 in.

A7

74 mm

105 mm

2.91 in.

4.13 in.

B0

1,028 mm

1,456 mm

40.48 in.

57.32 in.

B1

728 mm

1,028 mm

28.66 in.

40.48 in.

B2

514 mm

728 mm

20.24 in.

28.66

B3

364 mm

514 mm

14.33 in.

20.24 in.

B4

257 mm

364 mm

10.12 in.

14.33 in.

B5

182 mm

257 mm

7.17 in.

10.12 in.

B6

128 mm

182 mm

5.04 in.

7.17 in.

Common Paper Terms

Basis Weight
The basis weight of a paper is the designated fixed weight of 500 sheets, measured in pounds, in that paper's basic sheet size. It is important to note that the "basic sheet size" is not the same for all types of paper.


Caliper
Caliper refers to the thickness of a sheet of paper expressed in thousandth of an inch. This measurement is taken with a micro meter. Normally, paper caliper should not have more than a + or - 5% variance within a sheet. Generally, the relation between caliper and basis weight is the greater the caliper (the thicker the paper), the greater the paper weight.


Equivalent Weight
While different paper types have different basic sizes, papers can still be compared by using equivalent weight.

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