The inch, once the size of a barleycorn kernel, has fascinating origins. Early English measurement systems based it on the width of a man’s thumb. In the 14th century, King Edward II of England formalized it, defining an inch as the length of three barleycorns laid end to end. Historically, the inch was crucial for countless innovations, especially in Anglo-Saxon countries, influencing everything from watchmaking to industrial design.
Today, the inch still plays an integral role in areas like screen sizes and standardized paper dimensions, delighting both tech enthusiasts and everyday users. Interestingly, in surveying, an inch is divided into hundredths in the US, showing its adaptability in precision tasks. Despite the global shift towards the metric system, the inch endures, showcasing its resilience and continued relevance.
The “foot” as a unit of measurement has an intriguing history, tracing back to ancient civilizations. Originating in Egypt, it spread through Greece to the Roman Empire, where it was standardized and became a significant part of their measurement system. The length of the foot, approximately 12 inches, was traditionally based on the average length of a man’s foot, rendering it a highly practical unit for everyday measurements before the metric system revolution.
Interestingly, in the 12th century, King Henry I of England attempted to standardize the unit by defining a yard as the distance from the tip of his nose to the end of his thumb, indirectly influencing the definition of the foot. This highlights the foot’s historical flexibility and cultural significance, serving as a testament to human ingenuity in adapting measurement systems to suit societal needs.
| Inches | Feet |
|---|---|
0
in
|
0
ft
|
1
in
|
0.0833333
ft
|
2
in
|
0.166667
ft
|
3
in
|
0.25
ft
|
4
in
|
0.333333
ft
|
5
in
|
0.416667
ft
|
6
in
|
0.5
ft
|
7
in
|
0.583333
ft
|
8
in
|
0.666667
ft
|
9
in
|
0.75
ft
|
10
in
|
0.833333
ft
|
11
in
|
0.916667
ft
|
12
in
|
1
ft
|
13
in
|
1.08333
ft
|
14
in
|
1.16667
ft
|
15
in
|
1.25
ft
|
16
in
|
1.33333
ft
|
17
in
|
1.41667
ft
|
18
in
|
1.5
ft
|
19
in
|
1.58333
ft
|
20
in
|
1.66667
ft
|
21
in
|
1.75
ft
|
22
in
|
1.83333
ft
|
23
in
|
1.91667
ft
|
24
in
|
2
ft
|
25
in
|
2.08333
ft
|
26
in
|
2.16667
ft
|
27
in
|
2.25
ft
|
28
in
|
2.33333
ft
|
29
in
|
2.41667
ft
|
30
in
|
2.5
ft
|
31
in
|
2.58333
ft
|
32
in
|
2.66667
ft
|
33
in
|
2.75
ft
|
34
in
|
2.83333
ft
|
35
in
|
2.91667
ft
|
36
in
|
3
ft
|
37
in
|
3.08333
ft
|
38
in
|
3.16667
ft
|
39
in
|
3.25
ft
|
40
in
|
3.33333
ft
|
41
in
|
3.41667
ft
|
42
in
|
3.5
ft
|
43
in
|
3.58333
ft
|
44
in
|
3.66667
ft
|
45
in
|
3.75
ft
|
46
in
|
3.83333
ft
|
47
in
|
3.91667
ft
|
48
in
|
4
ft
|
49
in
|
4.08333
ft
|
50
in
|
4.16667
ft
|
51
in
|
4.25
ft
|
52
in
|
4.33333
ft
|
53
in
|
4.41667
ft
|
54
in
|
4.5
ft
|
55
in
|
4.58333
ft
|
56
in
|
4.66667
ft
|
57
in
|
4.75
ft
|
58
in
|
4.83333
ft
|
59
in
|
4.91667
ft
|
60
in
|
5
ft
|
61
in
|
5.08333
ft
|
62
in
|
5.16667
ft
|
63
in
|
5.25
ft
|
64
in
|
5.33333
ft
|
65
in
|
5.41667
ft
|
66
in
|
5.5
ft
|
67
in
|
5.58333
ft
|
68
in
|
5.66667
ft
|
69
in
|
5.75
ft
|
70
in
|
5.83333
ft
|
71
in
|
5.91667
ft
|
72
in
|
6
ft
|
73
in
|
6.08333
ft
|
74
in
|
6.16667
ft
|
75
in
|
6.25
ft
|
76
in
|
6.33333
ft
|
77
in
|
6.41667
ft
|
78
in
|
6.5
ft
|
79
in
|
6.58333
ft
|
80
in
|
6.66667
ft
|
81
in
|
6.75
ft
|
82
in
|
6.83333
ft
|
83
in
|
6.91667
ft
|
84
in
|
7
ft
|
85
in
|
7.08333
ft
|
86
in
|
7.16667
ft
|
87
in
|
7.25
ft
|
88
in
|
7.33333
ft
|
89
in
|
7.41667
ft
|
90
in
|
7.5
ft
|
91
in
|
7.58333
ft
|
92
in
|
7.66667
ft
|
93
in
|
7.75
ft
|
94
in
|
7.83333
ft
|
95
in
|
7.91667
ft
|
96
in
|
8
ft
|
97
in
|
8.08333
ft
|
98
in
|
8.16667
ft
|
99
in
|
8.25
ft
|
100
in
|
8.33333
ft
|
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