To convert millimeters to Ramsden chains, multiply the value by 3.28084 × 10⁻⁵. To go the other way, multiply Ramsden chains by 30,480 to get millimeters.
| Millimeters (mm) | Ramsden Chains (rch) |
|---|---|
| 1 mm | 3.28084 × 10⁻⁵ rch |
| 2 mm | 6.56168 × 10⁻⁵ rch |
| 5 mm | 0.000164042 rch |
| 10 mm | 0.000328084 rch |
| 20 mm | 0.000656168 rch |
| 50 mm | 0.00164042 rch |
| 100 mm | 0.00328084 rch |
| 500 mm | 0.0164042 rch |
| 1,000 mm | 0.0328084 rch |
250 mm × 3.28084 × 10⁻⁵ = 0.0082021 rch
Try this example →Millimeter (mm). A millimeter is one thousandth of a meter, used for small measurements such as thickness and rainfall.
Ramsden chain (rch). The Ramsden or engineer's chain is 100 feet (30.48 m), used in engineering surveys.
There are 3.28084 × 10⁻⁵ Ramsden chains in one millimeter.
Multiply the number of millimeters by 3.28084 × 10⁻⁵. For example, 10 millimeters equal 0.000328084 Ramsden chains.
One Ramsden chain equals 30,480 millimeters.