The US Survey Foot might seem like an unassuming unit, but it’s steeped in the very history of American land measurement. Unlike the International Foot, which is precisely defined as 0.3048 meters, the US Survey Foot is ever-so-slightly longer at approximately 0.3048006 meters. This minuscule difference stems from surveying practices established in the early 19th century and has historically been used for mapping and property delineation across the United States. Integral to the country’s westward expansion, the US Survey Foot played a pivotal role in the division and sale of public lands—underscoring its foundational impact on both real estate and infrastructure.
Despite its historical significance, the US Survey Foot was officially deprecated at the end of 2022, as the US moves towards a unified use of the International Foot for federal geodetic surveys. This transition simplifies engineering and scientific calculations, streamlining US standards with global practices. The legacy of the US Survey Foot, however, serves as a fascinating footnote in the story of American land development, marking an era when precise measurements charted the course of a growing nation.
The decimeter, though not as commonly used as its metric siblings like the meter or centimeter, plays a fascinating role in measurement. Originating from the French word “décimètre,” it represents a tenth of a meter and offers a convenient intermediary size for measurements that are neither too large for centimeters nor too granular for meters. Interestingly, the decimeter turns up in varied scientific fields, particularly in hydrology and oceanography, to gauge wave heights, accurately expressing dimensions in a more adaptable and manageable manner.
Despite its infrequent usage in everyday scenarios, the decimeter’s utility shines in education, especially in teaching the metric system. By understanding this unit, students gain an insight into the decimal nature of metric conversions, enhancing their mathematical fluency and grasp of scaling in different scientific contexts.
| US Survey Feet | Decimeters |
|---|---|
0
ft-us
|
0
dm
|
1
ft-us
|
3.04801
dm
|
2
ft-us
|
6.09601
dm
|
3
ft-us
|
9.14402
dm
|
4
ft-us
|
12.19202
dm
|
5
ft-us
|
15.24003
dm
|
6
ft-us
|
18.28804
dm
|
7
ft-us
|
21.33604
dm
|
8
ft-us
|
24.38405
dm
|
9
ft-us
|
27.43205
dm
|
10
ft-us
|
30.48006
dm
|
11
ft-us
|
33.52807
dm
|
12
ft-us
|
36.57607
dm
|
13
ft-us
|
39.62408
dm
|
14
ft-us
|
42.67208
dm
|
15
ft-us
|
45.72009
dm
|
16
ft-us
|
48.7681
dm
|
17
ft-us
|
51.8161
dm
|
18
ft-us
|
54.86411
dm
|
19
ft-us
|
57.91211
dm
|
20
ft-us
|
60.96012
dm
|
21
ft-us
|
64.00813
dm
|
22
ft-us
|
67.05613
dm
|
23
ft-us
|
70.10414
dm
|
24
ft-us
|
73.15214
dm
|
25
ft-us
|
76.20015
dm
|
26
ft-us
|
79.24816
dm
|
27
ft-us
|
82.29616
dm
|
28
ft-us
|
85.34417
dm
|
29
ft-us
|
88.39217
dm
|
30
ft-us
|
91.44018
dm
|
31
ft-us
|
94.48819
dm
|
32
ft-us
|
97.53619
dm
|
33
ft-us
|
100.5842
dm
|
34
ft-us
|
103.6322
dm
|
35
ft-us
|
106.68021
dm
|
36
ft-us
|
109.72822
dm
|
37
ft-us
|
112.77622
dm
|
38
ft-us
|
115.82423
dm
|
39
ft-us
|
118.87223
dm
|
40
ft-us
|
121.92024
dm
|
41
ft-us
|
124.96825
dm
|
42
ft-us
|
128.01625
dm
|
43
ft-us
|
131.06426
dm
|
44
ft-us
|
134.11226
dm
|
45
ft-us
|
137.16027
dm
|
46
ft-us
|
140.20828
dm
|
47
ft-us
|
143.25628
dm
|
48
ft-us
|
146.30429
dm
|
49
ft-us
|
149.35229
dm
|
50
ft-us
|
152.4003
dm
|
51
ft-us
|
155.44831
dm
|
52
ft-us
|
158.49631
dm
|
53
ft-us
|
161.54432
dm
|
54
ft-us
|
164.59232
dm
|
55
ft-us
|
167.64033
dm
|
56
ft-us
|
170.68834
dm
|
57
ft-us
|
173.73634
dm
|
58
ft-us
|
176.78435
dm
|
59
ft-us
|
179.83235
dm
|
60
ft-us
|
182.88036
dm
|
61
ft-us
|
185.92837
dm
|
62
ft-us
|
188.97637
dm
|
63
ft-us
|
192.02438
dm
|
64
ft-us
|
195.07238
dm
|
65
ft-us
|
198.12039
dm
|
66
ft-us
|
201.1684
dm
|
67
ft-us
|
204.2164
dm
|
68
ft-us
|
207.26441
dm
|
69
ft-us
|
210.31241
dm
|
70
ft-us
|
213.36042
dm
|
71
ft-us
|
216.40843
dm
|
72
ft-us
|
219.45643
dm
|
73
ft-us
|
222.50444
dm
|
74
ft-us
|
225.55244
dm
|
75
ft-us
|
228.60045
dm
|
76
ft-us
|
231.64846
dm
|
77
ft-us
|
234.69646
dm
|
78
ft-us
|
237.74447
dm
|
79
ft-us
|
240.79247
dm
|
80
ft-us
|
243.84048
dm
|
81
ft-us
|
246.88849
dm
|
82
ft-us
|
249.93649
dm
|
83
ft-us
|
252.9845
dm
|
84
ft-us
|
256.0325
dm
|
85
ft-us
|
259.08051
dm
|
86
ft-us
|
262.12852
dm
|
87
ft-us
|
265.17652
dm
|
88
ft-us
|
268.22453
dm
|
89
ft-us
|
271.27253
dm
|
90
ft-us
|
274.32054
dm
|
91
ft-us
|
277.36855
dm
|
92
ft-us
|
280.41655
dm
|
93
ft-us
|
283.46456
dm
|
94
ft-us
|
286.51256
dm
|
95
ft-us
|
289.56057
dm
|
96
ft-us
|
292.60858
dm
|
97
ft-us
|
295.65658
dm
|
98
ft-us
|
298.70459
dm
|
99
ft-us
|
301.75259
dm
|
100
ft-us
|
304.8006
dm
|
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