Convert Millimeter to Chain

Convert millimeters to chains by entering a value below.

1 mm (millimeters) = 4.9709695379e-5 ch (chains)

How to Convert Millimeters to Chains

The millimeter and chain are both units of length. 1 chain equals 20116.8 millimeters. This means to convert millimeters to chains, you divide by 20116.8.

Formula

chains = millimeters ÷ 20116.8

Step-by-Step Example

Convert 5 mm to chains:

1
Convert 5 mm to chains

We need to convert millimeters to chains

2
Apply the formula

Since 1 ch = 20116.8 mm, divide by 20116.8

5 ÷ 20116.8 = 0.0002485485

Answer

5 mm = 0.0002485485 ch

Millimeter to Chain Conversion Table

Quick reference table for common millimeter to chain conversions. Click any value for detailed calculation.

Millimeters (mm) Chains (ch)
0.1 mm 4.9709695379e-6 ch
0.5 mm 2.4854847689e-5 ch
1 mm 4.9709695379e-5 ch
2 mm 9.9419390758e-5 ch
5 mm 0.0002485485 ch
10 mm 0.000497097 ch
25 mm 0.0012427424 ch
50 mm 0.0024854848 ch
100 mm 0.0049709695 ch

About These Units

Millimeter (mm)

A millimeter (mm) is a metric unit of length equal to 1/1000 of a meter or 0.03937 inches. Millimeters are essential for precision measurements in engineering, manufacturing, medical imaging, and rainfall measurements. There are 25.4 mm in one inch.

Chain (ch)

A chain (ch) is a surveying unit equal to 66 feet, 22 yards, or 20.1168 meters. Invented by Edmund Gunter in 1620, chains are still used in land surveying and property descriptions. Ten chains equal one furlong, 80 chains equal one mile.

Frequently Asked Questions

How do I convert millimeters to chains?

To convert millimeters to chains, divide the value by 20116.8. For example, 10 mm = 0.000497097 ch.

How many chains are in 1 millimeter?

1 millimeter equals 4.9709695379e-5 chains.

What is the formula for millimeters to chains?

The formula is: ch = mm ÷ 20116.8.