Sheet Metal Gauge Conversions            

Thickness

Weight

Gauge

Frac. Inch

Dec. Inch

mm

oz/ft^2

lb/ft^2

kg/ft^2

kg/m^2

lb/m^2

0000000

1/2

0.5

12.7

320

20

9.072

97.65

215.28

000000

15/32

0.46875

11.90625

300

18.75

8.505

91.55

201.82

00000

7/16

0.4375

11.1125

280

17.5

7.983

85.44

188.37

0000

13/32

0.40625

10.31875

260

16.25

7.371

79.33

174.91

000

  3/8

0.375

9.525

240

15

6.804

73.24

161.46

00

 11/32

0.34375

8.73125

220

13.75

6.237

67.13

148

0

  5/16

0.3125

7.9375

200

12.5

5.67

61.03

134.55

1

   9/32

0.28125

7.14375

180

11.25

5.103

54.93

121.09

2

17/64

0.265625

6.746875

170

10.625

4.819

51.88

114.37

3

   1/4 

0.25

6.35

160

10

4.536

48.82

107.64

4

15/64

0.234375

5.953125

150

9.375

4.252

45.77

100.91

5

   7/32

0.21875

5.55625

140

8.75

3.969

42.72

94.18

6

13/64

0.203125

5.159375

130

8.125

3.685

39.67

87.45

7

   3/16

0.1875

4.7625

120

7.5

3.402

36.62

80.72

8

  11/64

0.171875

4.365625

110

6.875

3.118

33.57

74

9

   5/32

0.15625

3.96875

100

6.25

2.835

30.52

67.27

10

   9/64

0.140625

3.571875

90

5.625

2.552

27.46

60.55

11

   1/8 

0.125

3.175

80

5

2.268

24.41

53.82

12

   7/64

0.109375

2.778125

70

4.375

1.984

21.36

47.09

13

   3/32

0.09375

2.38125

60

3.75

1.701

18.31

40.36

14

   5/64

0.078125

1.984375

50

3.125

1.417

15.26

33.64

15

9/128

0.0703125

1.7859375

45

2.8125

1.276

13.73

30.27

16

   1/16

0.0625

1.5875

40

2.5

1.134

12.21

26.91

17

9/160

0.05625

1.42875

36

2.25

1.021

10.99

24.22

18

   1/20

0.05

1.27

32

2

0.9072

9.765

21.53

19

7/160

0.04375

1.11125

28

1.75

0.7938

8.544

18.84

20

   3/80

0.0375

0.9525

24

1.5

0.6804

7.324

16.15

21

11/320

0.034375

0.873125

22

1.375

0.6237

6.713

14.8

22

   1/32

0.03125

0.79375

20

1.25

0.567

6.103

13.46

23

9/320

0.028125

0.714375

18

1.125

0.5103

5.493

12.11

24

   1/40

0.025

0.635

16

1

0.4536

4.882

10.76

25

7/320

0.021875

0.555625

14

0.875

0.3969

4.272

9.42

26

3/160

0.01875

0.47625

12

0.75

0.3402

3.662

8.07

27

11/640

0.0171875

0.4365625

11

0.6875

0.3119

3.357

7.4

28

   1/64

0.015625

0.396875

10

0.625

0.2835

3.052

6.73

29

9/640

0.0140625

0.3571875

9

0.5625

0.2551

2.746

6.05

30

   1/80

0.0125

0.3175

8

0.5

0.2268

2.441

5.38

31

   7/64

0.0109375

0.2778125

7

0.4375

0.1984

2.136

4.71

32

13/1280

0.0101563

0.2579688

6 1/2

0.40625

0.1843

1.983

4.37

33

3/320

0.009375

0.238125

6

0.375

0.1701

1.831

4.04

34

11/1280

0.0085938

0.2182813

5 1/2

0.34375

0.1559

1.678

3.7

35

5/640

0.0078125

0.1984375

5

0.3125

0.1417

1.526

3.36

36

9/1280

0.0070313

0.1785938

4 1/2

0.28125

0.1276

1.373

3.03

37

17/2560

0.0066406

0.1686719

4 1/4

0.265625

0.1205

1.297

2.87

38

1/160

0.00625

0.15875

4

0.25

0.1134

1.221

2.69