To convert US survey chains to millimeters, multiply the value by 20,116.8. To go the other way, multiply millimeters by 4.97096 × 10⁻⁵ to get US survey chains.
| US Survey Chains (chUS) | Millimeters (mm) |
|---|---|
| 1 chUS | 20,116.8 mm |
| 2 chUS | 40,233.7 mm |
| 3 chUS | 60,350.5 mm |
| 4 chUS | 80,467.4 mm |
| 5 chUS | 100,584 mm |
| 6 chUS | 120,701 mm |
| 7 chUS | 140,818 mm |
| 8 chUS | 160,935 mm |
| 9 chUS | 181,052 mm |
| 10 chUS | 201,168 mm |
| 12 chUS | 241,402 mm |
| 14 chUS | 281,636 mm |
| 15 chUS | 301,753 mm |
| 20 chUS | 402,337 mm |
| 21 chUS | 422,454 mm |
| 24 chUS | 482,804 mm |
| 25 chUS | 502,921 mm |
| 30 chUS | 603,505 mm |
| 40 chUS | 804,674 mm |
| 50 chUS | 1,005,840 mm |
| 60 chUS | 1,207,010 mm |
| 75 chUS | 1,508,760 mm |
| 80 chUS | 1,609,350 mm |
| 100 chUS | 2,011,680 mm |
| 200 chUS | 4,023,370 mm |
| 250 chUS | 5,029,210 mm |
| 300 chUS | 6,035,050 mm |
| 400 chUS | 8,046,740 mm |
| 500 chUS | 10,058,400 mm |
| 750 chUS | 15,087,600 mm |
| 1,000 chUS | 20,116,800 mm |
US survey chain (chUS). The US survey chain is 66 US survey feet, about 20.1168 m.
Millimeter (mm). A millimeter is one thousandth of a meter, used for small measurements such as thickness and rainfall.
There are 20,116.8 millimeters in one US survey chain.
Multiply the number of US survey chains by 20,116.8. For example, 10 US survey chains equal 201,168 millimeters.
One millimeter equals 4.97096 × 10⁻⁵ US survey chains.
241,402 millimeters. Other common values: 5 US survey chains = 100,584 millimeters and 100 US survey chains = 2,011,680 millimeters.