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. The hectometer (hm) is useful for measuring sports tracks (1 lap = 4 hm), urban blocks (~1–2 hm long), or vineyard rows. Road signs in some European countries use hectometers for minor distance markers.
To convert between Chain (ch) and Hectometer (hm), use the following formulas:
1 Chain (ch) = 0.201168 Hectometer (hm)
1 Hectometer (hm) = 4.970969537898672 Chain (ch)
1 ch = 1 * 0.201168 hm = 0.201168 hm
5 ch = 5 * 0.201168 hm = 1.00584 hm
10 ch = 10 * 0.201168 hm = 2.01168 hm
20 ch = 20 * 0.201168 hm = 4.02336 hm
50 ch = 50 * 0.201168 hm = 10.0584 hm
100 ch = 100 * 0.201168 hm = 20.1168 hm
| Chain (ch) | Hectometer (hm) |
|---|---|
| 1 ch | 0.201168 hm |
| 5 ch | 1.00584 hm |
| 10 ch | 2.01168 hm |
| 20 ch | 4.02336 hm |
| 50 ch | 10.0584 hm |
| 100 ch | 20.1168 hm |