ch to Earth's equatorial radius
92 unitsConvert Chain (US survey) to Earth's equatorial radius (ch to Earth's equatorial radius)
1 chain (US survey) = 0.000003154019378 Earth's equatorial radius. Convert chain (US survey) to Earth's equatorial radius instantly, with the exact factor, the formula and a reference table of common values.
ch to Earth's equatorial radius conversion table
| ch | Earth's equatorial radius |
|---|---|
| 1 ch | 0.000003154019378 Earth's equatorial radius |
| 2 ch | 0.000006308038755 Earth's equatorial radius |
| 3 ch | 0.000009462058133 Earth's equatorial radius |
| 5 ch | 0.00001577009689 Earth's equatorial radius |
| 10 ch | 0.00003154019378 Earth's equatorial radius |
| 20 ch | 0.00006308038755 Earth's equatorial radius |
| 50 ch | 0.0001577009689 Earth's equatorial radius |
| 100 ch | 0.0003154019378 Earth's equatorial radius |
| 250 ch | 0.0007885048444 Earth's equatorial radius |
| 500 ch | 0.001577009689 Earth's equatorial radius |
| 1000 ch | 0.003154019378 Earth's equatorial radius |
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.