ch to Gm
92 unitsConvert Chain (US survey) to Gigameter (ch to Gm)
1 chain (US survey) = 2.011684e-8 gigameters. Convert chain (US survey) to gigameters instantly, with the exact factor, the formula and a reference table of common values.
ch to Gm conversion table
| ch | Gm |
|---|---|
| 1 ch | 2.011684e-8 Gm |
| 2 ch | 4.023368e-8 Gm |
| 3 ch | 6.035052e-8 Gm |
| 5 ch | 1.005842e-7 Gm |
| 10 ch | 2.011684e-7 Gm |
| 20 ch | 4.023368e-7 Gm |
| 50 ch | 0.000001005842012 Gm |
| 100 ch | 0.000002011684023 Gm |
| 250 ch | 0.000005029210058 Gm |
| 500 ch | 0.00001005842012 Gm |
| 1000 ch | 0.00002011684023 Gm |
What is a chain (US survey)?
The chain (US survey) is a US survey unit. One chain (US survey) equals 20.11684023 meters, so every conversion on this page starts from that single number. Survey units come from a slightly older definition of the foot that the United States kept for land measurement, so they are a tiny fraction larger than the modern versions.
The difference is far too small to notice in a room, but across miles of property boundary it matters, which is why surveyors and deed records keep the two apart.
In writing, the chain (US survey) is usually shortened to "ch". One chain (US survey) is 20.11684023 meters, and that ratio is what every figure on this page is built from.