The mil is a unit of measurement commonly used in various fields, including manufacturing and meteorology. Originating from the Latin word “millesimum,” meaning “thousandth,” a mil represents one-thousandth of an inch (0.001 inches). Its precision makes it indispensable for industries where exact measurements are crucial, such as printing and engineering. In the world of meteorology, mils are used to measure precipitation, helping to forecast weather conditions accurately.
Interestingly, the term “mil” is also often used interchangeably with “thou,” especially in the machining and engineering sectors. This small yet significant unit plays a vital role in ensuring quality control and standardization across different industries, highlighting its essential presence in our everyday life and technological advancements.
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.
Mils | Feet |
---|---|
0
mil
|
0
ft
|
10
mil
|
0.000833333
ft
|
20
mil
|
0.00166667
ft
|
30
mil
|
0.0025
ft
|
40
mil
|
0.00333333
ft
|
50
mil
|
0.00416667
ft
|
60
mil
|
0.005
ft
|
70
mil
|
0.00583333
ft
|
80
mil
|
0.00666667
ft
|
90
mil
|
0.0075
ft
|
100
mil
|
0.00833333
ft
|
110
mil
|
0.00916667
ft
|
120
mil
|
0.01
ft
|
130
mil
|
0.0108333
ft
|
140
mil
|
0.0116667
ft
|
150
mil
|
0.0125
ft
|
160
mil
|
0.0133333
ft
|
170
mil
|
0.0141667
ft
|
180
mil
|
0.015
ft
|
190
mil
|
0.0158333
ft
|
200
mil
|
0.0166667
ft
|
210
mil
|
0.0175
ft
|
220
mil
|
0.0183333
ft
|
230
mil
|
0.0191667
ft
|
240
mil
|
0.02
ft
|
250
mil
|
0.0208333
ft
|
260
mil
|
0.0216667
ft
|
270
mil
|
0.0225
ft
|
280
mil
|
0.0233333
ft
|
290
mil
|
0.0241667
ft
|
300
mil
|
0.025
ft
|
310
mil
|
0.0258333
ft
|
320
mil
|
0.0266667
ft
|
330
mil
|
0.0275
ft
|
340
mil
|
0.0283333
ft
|
350
mil
|
0.0291667
ft
|
360
mil
|
0.03
ft
|
370
mil
|
0.0308333
ft
|
380
mil
|
0.0316667
ft
|
390
mil
|
0.0325
ft
|
400
mil
|
0.0333333
ft
|
410
mil
|
0.0341667
ft
|
420
mil
|
0.035
ft
|
430
mil
|
0.0358333
ft
|
440
mil
|
0.0366667
ft
|
450
mil
|
0.0375
ft
|
460
mil
|
0.0383333
ft
|
470
mil
|
0.0391667
ft
|
480
mil
|
0.04
ft
|
490
mil
|
0.0408333
ft
|
500
mil
|
0.0416667
ft
|
510
mil
|
0.0425
ft
|
520
mil
|
0.0433333
ft
|
530
mil
|
0.0441667
ft
|
540
mil
|
0.045
ft
|
550
mil
|
0.0458333
ft
|
560
mil
|
0.0466667
ft
|
570
mil
|
0.0475
ft
|
580
mil
|
0.0483333
ft
|
590
mil
|
0.0491667
ft
|
600
mil
|
0.05
ft
|
610
mil
|
0.0508333
ft
|
620
mil
|
0.0516667
ft
|
630
mil
|
0.0525
ft
|
640
mil
|
0.0533333
ft
|
650
mil
|
0.0541667
ft
|
660
mil
|
0.055
ft
|
670
mil
|
0.0558333
ft
|
680
mil
|
0.0566667
ft
|
690
mil
|
0.0575
ft
|
700
mil
|
0.0583333
ft
|
710
mil
|
0.0591667
ft
|
720
mil
|
0.06
ft
|
730
mil
|
0.0608333
ft
|
740
mil
|
0.0616667
ft
|
750
mil
|
0.0625
ft
|
760
mil
|
0.0633333
ft
|
770
mil
|
0.0641667
ft
|
780
mil
|
0.065
ft
|
790
mil
|
0.0658333
ft
|
800
mil
|
0.0666667
ft
|
810
mil
|
0.0675
ft
|
820
mil
|
0.0683333
ft
|
830
mil
|
0.0691667
ft
|
840
mil
|
0.07
ft
|
850
mil
|
0.0708333
ft
|
860
mil
|
0.0716667
ft
|
870
mil
|
0.0725
ft
|
880
mil
|
0.0733333
ft
|
890
mil
|
0.0741667
ft
|
900
mil
|
0.075
ft
|
910
mil
|
0.0758333
ft
|
920
mil
|
0.0766667
ft
|
930
mil
|
0.0775
ft
|
940
mil
|
0.0783333
ft
|
950
mil
|
0.0791667
ft
|
960
mil
|
0.08
ft
|
970
mil
|
0.0808333
ft
|
980
mil
|
0.0816667
ft
|
990
mil
|
0.0825
ft
|
1000
mil
|
0.0833333
ft
|
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