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Fractions and Decimal Inches Equivalents

The inches fractional and decimal equivalents.

Fractions and Decimal Inches Equivalents
64ths32nds16ths8ths4thshalfwholedecimal
(in)
1/64             0.0156
2/64 1/32           0.0313
3/64             0.0469
4/64 2/32 1/16         0.0625
5/64             0.0781
6/64 3/32           0.0938
7/64             0.1094
8/64 4/32 2/16 1/8       0.1250
9/64             0.1406
10/64 5/32           0.1563
11/64             0.1719
12/64 6/32 3/16         0.1875
13/64             0.2031
14/64 7/32           0.2188
15/64             0.2344
16/64 8/32 4/16 2/8 1/4     0.2500
17/64             0.2656
18/64 9/32           0.2813
19/64             0.2969
20/64 10/32 5/16         0.3125
21/64             0.3281
22/64 11/32           0.3438
23/64             0.3594
24/64 12/32 6/16 3/8       0.3750
25/64             0.3906
26/64 13/32           0.4063
27/64             0.4219
28/64 14/32 7/16         0.4375
29/64             0.4531
30/64 15/32           0.4688
31/64             0.4844
32/64 16/32 8/16 4/8 2/4 1/2   0.5000
33/64             0.5156
34/64 17/32           0.5313
35/64             0.5469
36/64 18/32 9/16         0.5625
37/64             0.5781
38/64 19/32           0.5938
39/64             0.6094
40/64 20/32 10/16 5/8       0.6250
41/64             0.6406
42/64 21/32           0.6563
43/64             0.6719
44/64 22/32 11/16         0.6875
45/64             0.7031
46/64 23/32           0.7188
47/64             0.7344
48/64 24/32 12/16 6/8 3/4     0.7500
49/64             0.7656
50/64 25/32           0.7813
51/64             0.7969
52/64 26/32 13/16         0.8125
53/64             0.8281
54/64 27/32           0.8438
55/64             0.8594
56/64 28/32 14/16 7/8       0.8750
57/64             0.8906
58/64 29/32           0.9063
59/64             0.9219
60/64 30/32 15/16         0.9375
61/64             0.9531
62/64 31/32           0.9688
63/64             0.9844
64/64 32/32 16/16 8/8 4/4 2/2 1/1 1.000
  • 1 inch = 25.4 mm

Fractions consist of two basic parts:

  • denominator - or bottom number
  • numerator - or the top number

Fraction to Decimal - Example

Convert 1/8" to decimal:

  1. numerator is top number - numerator is 1
  2. denominator is bottom number - denominator is 8
  3. divide the top number with the bottom number - 1/8 = 0.125 

Related Topics

  • Basics

    Basic engineering data. SI-system, unit converters, physical constants, drawing scales and more.

  • Mathematics

    Mathematical rules and laws - numbers, areas, volumes, exponents, trigonometric functions and more.

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