ch to mm
92 unitsResult2.011680e+4
20116.8mm
1 ch × 20116.8 = 20116.8 mm
Convert Chain to Millimeter (ch to mm)
1 chain = 20116.8 millimeters. Convert chains to millimeters instantly, with the exact factor, the formula and a reference table of common values.
Formula
millimeters = chains × 20116.8
ch to mm conversion table
| ch | mm |
|---|---|
| 1 ch | 20116.8 mm |
| 2 ch | 40233.6 mm |
| 3 ch | 60350.4 mm |
| 5 ch | 100584 mm |
| 10 ch | 201168 mm |
| 20 ch | 402336 mm |
| 50 ch | 1005840 mm |
| 100 ch | 2011680 mm |
| 250 ch | 5029200 mm |
| 500 ch | 10058400 mm |
| 1000 ch | 20116800 mm |
What is a chain?
The chain belongs to the imperial and US customary family of length units, the system built on inches, feet, yards, and miles. One chain equals 20.1168 meters, so every conversion on this page starts from that single number.
These units grew out of everyday measuring — paces, ropes, plow lengths, and body parts — so they do not line up in tens the way metric units do. That is exactly why a conversion table is useful, and you will find one for chains below.
In writing, the chain is usually shortened to "ch". One chain is 20.1168 meters, and that ratio is what every figure on this page is built from.