Sterling Circles Chart
© Jeffrey Herman

 

Example: 4" diameter sterling sheet x 18 gauge = 2.77 troy ounces

Dia.

15g
(.057)

16g
(.051)

17g
(.045)

18g
(.040)

19g
(.036)

20g
(.032)

21g
(.028)

22g
(.025)

23g
(.022)

24g
(.020)

25g
(.018)

26g
(.016)

½"

.0614

.0547

.0487

.0433

.0386

.0344

.0306

.0273

.0243

.0216

.0193

.0171

¾"

.138

.123

.109

.0975

.0868

.0773

.0689

.0613

.0546

.0486

.0433

.0386

1"

.245

.219

.195

.173

.154

.137

.122

.109

.0971

.0865

.0770

.0686

1¼"

.384

.342

.304

.271

.241

.215

191

.170

.152

.135

.120

.107

1½"

.552

.492

.438

.390

.347

.309

.275

.245

.218

.195

.173

.154

1¾"

.752

.669

.596

.531

.473

.421

.375

.334

.297

.265

.236

.210

2"

.982

.874

.779

.693

.618

.550

.490

.436

.388

.346

.308

.274

2¼"

1.24

1.11

.985

.878

.782

.696

.620

.552

.492

.438

.390

.347

2½"

1.53

1.37

1.22

1.08

.965

.859

.765

.681

.607

.540

.481

429

2¾"

1.86

1.65

1.47

1.31

1.17

1.04

926

824

734

654

582

519

3"

2.21

1.97

1.75

1.56

1.39

1.24

1.10

981

874

778

693

617

3¼"

2.59

2.31

2.06

1.83

1.63

1.45

1.29

1.15

1.03

913

813

724

3½"

3.01

2.68

2.38

2.12

1.89

1.68

1.50

1.34

1.19

1.06

943

840

3¾"

3.45

3.07

2.74

2.44

2.17

1.93

1.72

1.53

1.37

1.22

1.08

.964

4"

3.93

3.50

3.11

2.77

2.47

2.20

1.96

1.74

1.55

1.38

1.23

1.10

4¼"

4.43

3.95

3.52

3.13

2.79

2.48

2.21

1.97

1.75

1.56

1.39

1.24

4½"

4.97

4.43

3.94

3.51

3.13

2.78

2.48

2.21

1.97

1.75

1.56

1.39

4¾"

5.54

4.93

4.39

3.91

3.48

3.10

2.76

2.46

2.19

1.95

1.74

1.55

5"

6.14

5.47

4.87

4.33

3.86

3.44

3.06

2.73

2.43

2.16

1.93

1.71

5¼"

6.77

6.03

5.37

4.78

4.26

3.79

3.37

3.00

2.68

2.38

2.12

1.89

5½"

7.43

6.61

5.89

5.24

4.67

4.16

3.70

3.30

2.94

2.62

2.33

2.07

5¾"

8.12

7.23

6.44

5.73

5.10

4.55

4.05

3.60

3.21

2.86

2.55

2.27

6"

8.84

7.87

7.01

6.24

5.56

4.95

4.41

3.92

3.50

3.11

2.77

2.47

6¼"

9.59

8.54

7.60

6.77

6.03

5.37

4.78

4.26

3.79

3.38

3.01

2.68

6½"

10.4

9.24

8.22

7.32

6.52

5.81

5.17

4.61

4.10

3.65

3.25

2.90

6¾"

11.2

9.96

8.87

7.90

7.03

6.26

5.58

4.97

4.42

3.94

3.51

3.12

7"

12.0

10.7

9.54

8.49

7.56

6.74

6.00

5.34

4.76

4.24

3.77

3.36

7¼"

12.9

11.5

10.2

9.11

8.11

7.23

6.43

5 73

5.10

4.54

4.05

3.60

7½"

13.8

12.3

10.9

9.75

8.68

7.73

6.89

6.13

5.46

4.86

4.33

3.86

7¾"

14.7

13.1

11.7

10.4

9.27

8.26

7.35

6.55

5.83

5.19

4.62

4.12

8"

15.7

14.0

12.5

11.1

9.88

8.80

7.84

6.98

6.21

5.53

4.93

4.39

8¼"

16.7

14.9

13.2

11.8

10.5

9.36

8.33

7.42

6.61

5.88

5.24

4.67

8½"

17.7

15.8

14.1

12.5

11.2

9.93

8.85

7.88

7.01

6.25

5.56

4.95

8¾"

18.8

16.7

14.9

13.3

11.8

10.5

9.37

8.35

7.43

6.62

5.90

5.25

9"

19.9

17.7

15.8

14.0

12.5

11.1

9.92

8.83

7.86

7.00

6.24

5.55

9¼"

21.0

18.7

16.7

14.8

13.2

11.8

10.5

9.33

8.31

7.40

6.59

5.87

9½"

22.0

19.7

17.6

15.6

13.9

12.4

1 1.0

9.84

8.76

7.80

6.95

6.19

9¾"

23.3

20.8

18.5

16.5

14.7

13.1

11.6

10.4

9.23

8.22

7.32

6.52

10"

24.5

21.9

19.5

17.3

15.4

13.7

12.2

10.9

9.71

8.65

7.70

6.86

10¼"

25.8

23.0

20.5

18.2

16.2

14.1

12.9

1 1.5

10.2

9.08

8.09

7.20

10½"

27.1

24.1

21.5

19.1

17.0

15.2

13.5

12.0

10.7

9.53

8.49

7.56

10¾"

28.4

25.3

22.5

20.0

17.8

15.9

14.1

12.6

11.2

9.99

8.90

7.92

11"

29.7

26.5

23.6

21.0

18.7

16.6

14.8

13.2

11.7

10.5

9.32

8.30

11¼"

31.1

27.7

24.6

21.9

19.5

17.4

15.5

13.8

12.3

10.9

9.75

8.68

11½"

32.5

28.9

25.7

22.9

20.4

18.2

16.2

14.4

12.8

11.4

10.2

9.07

11¾"

33.9

30.2

26.9

23.9

21.3

19.0

16.9

15.0

13.4

11.9

10.6

9.47

12"

35.3

31.5

28.0

25.0

22.2

19.8

17.6

15.7

14.0

12.5

11.1

9.87

12¼"

36.8

32.8

29.2

26.0

23.2

20.6

18.4

16.4

14.6

13.0

11.6

10.3

12½"

38.4

34.2

30.4

27.1

24.1

21.5

19.1

17.0

15.2

13.5

12.0

10.7

12¾"

39.9

35.5

31.6

28.2

25.1

22.3

19.9

47.7

15.8

14.1

12.5

11.1

13"

41.5

36.9

32.9

29.3

26.1

23.2

20.7

18.4

16.4

14.6

13.0

11.6

13¼"

43.1

38.1

34.2

30.4

27.1

24.1

21.5

19.1

17.0

15.2

13.5

12.0

13½"

41.7

39.8

35.5

31.6

28.1

25.1

22.3

19.9

17.7

15.8

14.0

12.5

13¾"

46.4

41.3

36.8

32.8

29.2

26.0

23.1

20.6

18.4

16.3

14.6

13.0

14"

48.1

42.8

38.2

34.0

30.3

26.9

24.0

21.4

19.0

16.9

15.1

13.4

14¼"

49.8

41.4

39.5

35.2

31.3

27.9

24.9

22.1

19.7

17.6

15.6

13.9

14½"

51.6

46.0

40.9

36.4

32.5

28.9

25.7

22.9

20.4

18.2

16.2

14.4

14¾"

53.4

47.6

42.3

37.7

33.6

29.9

26.6

23.7

21.1

18.8

16.8

14.9

15"

55.2

49.2

43.8

39.0

34.7

30.9

27.5

24.5

21.8

19.5

17.3

15.4

15¼"

57.1

50.8

45.3

40.3

35.9

32.0

28.5

25.4

22.6

20.1

17.9

15.9

15½"

59.0

52.5

46.8

41.6

37.1

33.0

29.4

26.2

23.3

20.8

18.5

16.5

15¾"

60.9

54.2

48.3

43.0

38.3

34.1

30.4

27.0

24.1

21.4

19.1

17.0

16"

62.8

56.0

49.8

44.4

39.5

35.2

31.3

27.9

24.9

22.1

19.7

17.6

16¼"

64.8

57.7

51.4

45.8

40.8

36.3

32.3

28.8

25.6

22.8

20.3

18.1

16½"

66.8

59.5

53.0

47.2

42.0

37.4

33.3

29.7

26.4

23.5

21.0

18.7

16¾"

68.9

61.3

51.6

48.6

43.3

38.6

34.3

30.6

27.2

24.3

21.6

19.2

17"

70.9

63.2

56.3

50.1

44.6

39.7

35.4

31.5

28.1

25.0

22.3

19.8

17¼"

73.0

65.0

57.9

51.6

45.9

40.9

36.4

32.4

28.9

25.7

22.9

20.4

17½"

75.2

66.9

59.6

53.1

47.3

42.1

37.5

33.4

29.7

26.5

23.6

21.0

17¾"

77.3

68.9

61.3

54.6

48.6

43.3

38.6

34.3

30.6

27.2

24.3

21.6

18"

79.5

70.8

63.1

56.2

50.0

44.5

39.7

35.3

31.5

28.0

24.9

22.2

18¼"

81.8

72.8

64.8

57.7

51.4

45.8

40.8

36.3

32.3

28.8

25.6

22.8

18½"

84.0

74.8

66.6

59.3

52.8

47.1

41.9

37.3

33.2

29.6

26.4

23.5

18¾"

86.3

76.9

68.4

60.9

54.3

48.3

43.0

38.3

34.1

30.4

27.1

24.1

19"

88.6

78.9

70.3

62.6

55.7

49.6

44.2

39.4

35.0

31.2

27.8