# Chains to Millimeters (ch to mm)

## Chains to Millimeters (ch to mm) conversion calculator

Millimeters to Chains (Swap units)

1ch = 20116.8386mm

Accuracy

Note: You can increase or decrease the accuracy of this answer by selecting the number of significant figures required from the options above the result.

### Chains to Millimeters formula

Millimeters = Chains * 20116.83859858

### Chains to Millimeters calculation

Millimeters = Chains * 20116.83859858

Millimeters = 1 * 20116.838598581

Millimeters = 20116.8386

## What is a chain?

The chain is a unit of length measurement commonly used in surveying and land measurement. It is primarily used in countries that follow the imperial system of measurement, such as the United States and the United Kingdom. One chain is equal to 66 feet or 20.1168 meters. It is further divided into 100 links, with each link measuring 0.66 feet or 7.92 inches.

The chain was historically used for measuring large areas of land, such as farms or estates. Surveyors would use chains to measure distances between points and establish boundaries. The use of chains allowed for more accurate measurements compared to other methods available at the time. Today, the chain is still used in some specialized fields, such as civil engineering and land surveying, although it has been largely replaced by more modern and precise measurement tools like GPS.

## What is a millimeter?

A millimeter is a thousandth of a meter (1/1000) which is the SI (International System of Units) unit of length. It is normally used to measure small lengths like the thickness of a sheet of paper or the dimensions of a small object.

One millimeter is approximately equal to 0.03937 inches (about 1/25th). Presicely there are 25.4 millimeters in an inch and it is often used in science and engineering. It is used in countries that have adopted the metric system.

You may come across millimeters when measuring the size of electronic components, jewelry or even the thickness of a fingernail.

## Chains to Millimeters table

Starting value
Increment
Accuracy
Chains
Millimeters
0ch
0.00000mm
1ch
20,116.83860mm
2ch
40,233.67720mm
3ch
60,350.51580mm
4ch
80,467.35439mm
5ch
100,584.19299mm
6ch
120,701.03159mm
7ch
140,817.87019mm
8ch
160,934.70879mm
9ch
181,051.54739mm
10ch
201,168.38599mm
11ch
221,285.22458mm
12ch
241,402.06318mm
13ch
261,518.90178mm
14ch
281,635.74038mm
15ch
301,752.57898mm
16ch
321,869.41758mm
17ch
341,986.25618mm
18ch
362,103.09477mm
19ch
382,219.93337mm
Chains
Millimeters
20ch
402,336.77197mm
21ch
422,453.61057mm
22ch
442,570.44917mm
23ch
462,687.28777mm
24ch
482,804.12637mm
25ch
502,920.96496mm
26ch
523,037.80356mm
27ch
543,154.64216mm
28ch
563,271.48076mm
29ch
583,388.31936mm
30ch
603,505.15796mm
31ch
623,621.99656mm
32ch
643,738.83515mm
33ch
663,855.67375mm
34ch
683,972.51235mm
35ch
704,089.35095mm
36ch
724,206.18955mm
37ch
744,323.02815mm
38ch
764,439.86675mm
39ch
784,556.70534mm
Chains
Millimeters
40ch
804,673.54394mm
41ch
824,790.38254mm
42ch
844,907.22114mm
43ch
865,024.05974mm
44ch
885,140.89834mm
45ch
905,257.73694mm
46ch
925,374.57553mm
47ch
945,491.41413mm
48ch
965,608.25273mm
49ch
985,725.09133mm
50ch
1,005,841.92993mm
51ch
1,025,958.76853mm
52ch
1,046,075.60713mm
53ch
1,066,192.44572mm
54ch
1,086,309.28432mm
55ch
1,106,426.12292mm
56ch
1,126,542.96152mm
57ch
1,146,659.80012mm
58ch
1,166,776.63872mm
59ch
1,186,893.47732mm
Chains
Millimeters
60ch
1,207,010.31591mm
61ch
1,227,127.15451mm
62ch
1,247,243.99311mm
63ch
1,267,360.83171mm
64ch
1,287,477.67031mm
65ch
1,307,594.50891mm
66ch
1,327,711.34751mm
67ch
1,347,828.18610mm
68ch
1,367,945.02470mm
69ch
1,388,061.86330mm
70ch
1,408,178.70190mm
71ch
1,428,295.54050mm
72ch
1,448,412.37910mm
73ch
1,468,529.21770mm
74ch
1,488,646.05629mm
75ch
1,508,762.89489mm
76ch
1,528,879.73349mm
77ch
1,548,996.57209mm
78ch
1,569,113.41069mm
79ch
1,589,230.24929mm