The Chain (Gunter's chain) was fundamental in surveying the American frontier. Measuring 66 feet (4 rods), it's the length of a cricket pitch. Ten square chains make an acre. Modern surveyors still reference chains in legal descriptions, and the unit remains visible in rural road layouts across the US. Used in planetary science (Earth's diameter = ~12.7 Mm). Also for long-distance fiber optics or satellite measurements.
To convert between Chain (ch) and Megameter (Mm), use the following formulas:
1 Chain (ch) = 0.0000201168 Megameter (Mm)
1 Megameter (Mm) = 49709.69537898671 Chain (ch)
1 ch = 1 * 0.0000201168 Mm = 0.0000201168 Mm
5 ch = 5 * 0.0000201168 Mm = 0.000100584 Mm
10 ch = 10 * 0.0000201168 Mm = 0.000201168 Mm
20 ch = 20 * 0.0000201168 Mm = 0.000402336 Mm
50 ch = 50 * 0.0000201168 Mm = 0.00100584 Mm
100 ch = 100 * 0.0000201168 Mm = 0.00201168 Mm
Chain (ch) | Megameter (Mm) |
---|---|
1 ch | 0.0000201168 Mm |
5 ch | 0.000100584 Mm |
10 ch | 0.000201168 Mm |
20 ch | 0.000402336 Mm |
50 ch | 0.00100584 Mm |
100 ch | 0.00201168 Mm |