# Millimeters to Chains (mm to ch)

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

Chains to Millimeters (Swap units) Buy digital tape measures here (sponsored link)

1mm = 5.0E-5ch

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.

### Millimeters to Chains formula

Chains = Millimeters / 20116.67672501

### Millimeters to Chains calculation

Chains = Millimeters / 20116.67672501

Chains = 1 / 20116.838598581

Chains = 5.0E-5

## 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.

## 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.

Starting value
Increment
Accuracy
Millimeters
Chains
0mm
0.00000ch
1mm
0.00005ch
2mm
0.00010ch
3mm
0.00015ch
4mm
0.00020ch
5mm
0.00025ch
6mm
0.00030ch
7mm
0.00035ch
8mm
0.00040ch
9mm
0.00045ch
10mm
0.00050ch
11mm
0.00055ch
12mm
0.00060ch
13mm
0.00065ch
14mm
0.00070ch
15mm
0.00075ch
16mm
0.00080ch
17mm
0.00085ch
18mm
0.00089ch
19mm
0.00094ch
Millimeters
Chains
20mm
0.00099ch
21mm
0.00104ch
22mm
0.00109ch
23mm
0.00114ch
24mm
0.00119ch
25mm
0.00124ch
26mm
0.00129ch
27mm
0.00134ch
28mm
0.00139ch
29mm
0.00144ch
30mm
0.00149ch
31mm
0.00154ch
32mm
0.00159ch
33mm
0.00164ch
34mm
0.00169ch
35mm
0.00174ch
36mm
0.00179ch
37mm
0.00184ch
38mm
0.00189ch
39mm
0.00194ch
Millimeters
Chains
40mm
0.00199ch
41mm
0.00204ch
42mm
0.00209ch
43mm
0.00214ch
44mm
0.00219ch
45mm
0.00224ch
46mm
0.00229ch
47mm
0.00234ch
48mm
0.00239ch
49mm
0.00244ch
50mm
0.00249ch
51mm
0.00254ch
52mm
0.00258ch
53mm
0.00263ch
54mm
0.00268ch
55mm
0.00273ch
56mm
0.00278ch
57mm
0.00283ch
58mm
0.00288ch
59mm
0.00293ch
Millimeters
Chains
60mm
0.00298ch
61mm
0.00303ch
62mm
0.00308ch
63mm
0.00313ch
64mm
0.00318ch
65mm
0.00323ch
66mm
0.00328ch
67mm
0.00333ch
68mm
0.00338ch
69mm
0.00343ch
70mm
0.00348ch
71mm
0.00353ch
72mm
0.00358ch
73mm
0.00363ch
74mm
0.00368ch
75mm
0.00373ch
76mm
0.00378ch
77mm
0.00383ch
78mm
0.00388ch
79mm
0.00393ch