Metrics and DecimalHome

Fractions to Decimal and Millimeter

Inches to Centimeters
1 Inch = 2.54 cm
Multiply number of inches by 2.54 to get length in centimeters.
2.54 x inches = cm
example: 2.54 x 10 inches = 25.4 cm

Centimeters to Inches
1 cm = 0.3937 inch
Multiply the number of cm by 0.3937 to get length in inches.
0.3937
x cm = inches
example: 0.3937 inches x 6 cm = 2.362 inches

Inches to Millimeters
Multiply number of inches by 25.4 to get length in millimeters.
25.4 x in = mm
example: 25.4 x 0.25 inch = 6.35 mm

Millimeters to Inches
Multiply number of millimeters by .03937 to get length in inches.
0.03937 x mm = inches
example:0.03937 x 10 mm = .3937 inches

 

 

fraction

decimal

mm

 

fraction

decimal

mm

 

fraction

decimal

mm

 

 

1/64

0.0156

0.3969

 

1 1/64

1.0156

25.7969

 

2 1/64

2.0156

51.1969

 

 

1/32

0.0313

0.7938

 

1 1/32

1.0313

26.1938

 

2 1/32

2.0313

51.5938

 

 

3/64

0.0469

1.1906

 

1 3/64

1.0469

26.5906

 

2 3/64

2.0469

51.9906

 

 

1/16

0.0625

1.5875

 

1 1/16

1.0625

26.9875

 

2 1/16

2.0625

52.3875

 

 

5/64

0.0781

1.9844

 

1 5/64

1.0781

27.3844

 

2 5/64

2.0781

52.7844

 

 

3/32

0.0938

2.3813

 

1 3/32

1.0938

27.7813

 

2 3/32

2.0938

53.1813

 

 

7/64

0.1094

2.7781

 

1 7/64

1.1094

28.1781

 

2 7/64

2.1094

53.5781

 

 

1/8

0.1250

3.1750

 

1 1/8

1.1250

28.5750

 

2 1/8

2.1250

53.9750

 

 

9/64

0.1406

3.5719

 

1 9/64

1.1406

28.9719

 

2 9/64

2.1406

54.3719

 

 

5/32

0.1563

3.9688

 

1 5/32

1.1563

29.3688

 

2 5/32

2.1563

54.7688

 

 

11/64

0.1719

4.3656

 

1 11/64

1.1719

29.7656

 

2 11/64

2.1719

55.1656

 

 

3/16

0.1875

4.7625

 

1 3/16

1.1875

30.1625

 

2 3/16

2.1875

55.5625

 

 

13/64

0.2031

5.1594

 

1 13/64

1.2031

30.5594

 

2 13/64

2.2031

55.9594

 

 

7/32

0.2188

5.5563

 

1 7/32

1.2188

30.9563

 

2 7/32

2.2188

56.3563

 

 

15/64

0.2344

5.9531

 

1 15/64

1.2344

31.3531

 

2 15/64

2.2344

56.7531

 

 

1/4

0.2500

6.3500

 

1 1/4

1.2500

31.7500

 

2 1/4

2.2500

57.1500

 

 

17/64

0.2656

6.7469

 

1 17/64

1.2656

32.1469

 

2 17/64

2.2656

57.5469

 

 

9/32

0.2813

7.1438

 

1 9/32

1.2813

32.5438

 

2 9/32

2.2813

57.9438

 

 

19/64

0.2969

7.5406

 

1 19/64

1.2969

32.9406

 

2 19/64

2.2969

58.3406

 

 

5/16

0.3125

7.9375

 

1 5/16

1.3125

33.3375

 

2 5/16

2.3125

58.7375

 

 

21/64

0.3281

8.3344

 

1 21/64

1.3281

33.7344

 

2 21/64

2.3281

59.1344

 

 

11/32

0.3438

8.7313

 

1 11/32

1.3438

34.1313

 

2 11/32

2.3438

59.5313

 

 

23/64

0.3594

9.1281

 

1 23/64

1.3594

34.5281

 

2 23/64

2.3594

59.9281

 

 

3/8

0.3750

9.5250

 

1 3/8

1.3750

34.9250

 

2 3/8

2.3750

60.3250

 

 

25/64

0.3906

9.9219

 

1 25/64

1.3906

35.3219

 

2 25/64

2.3906

60.7219

 

 

13/32

0.4063

10.3188

 

1 13/32

1.4063

35.7188

 

2 13/32

2.4063

61.1188

 

 

27/64

0.4219

10.7156

 

1 27/64

1.4219

36.1156

 

2 27/64

2.4219

61.5156

 

 

7/16

0.4375

11.1125

 

1 7/16

1.4375

36.5125

 

2 7/16

2.4375

61.9125

 

 

29/64

0.4531

11.5094

 

1 29/64

1.4531

36.9094

 

2 29/64

2.4531

62.3094

 

 

15/32

0.4688

11.9063

 

1 15/32

1.4688

37.3063

 

2 15/32

2.4688

62.7063

 

 

31/64

0.4844

12.3031

 

1 31/64

1.4844

37.7031

 

2 31/64

2.4844

63.1031

 

 

1/2

0.5000

12.7000

 

1 1/2

1.5000

38.1000

 

2 1/2

2.5000

63.5000

 

 

33/64

0.5156

13.0969

 

1 33/64

1.5156

38.4969

 

2 33/64

2.5156

63.8969

 

 

17/32

0.5313

13.4938

 

1 17/32

1.5313

38.8938

 

2 17/32

2.5313

64.2938

 

 

35/64

0.5469

13.8906

 

1 35/64

1.5469

39.2906

 

2 35/64

2.5469

64.6906