ch to aln
92 unitsConvert Chain (US survey) to Aln (ch to aln)
1 chain (US survey) = 33.87940907 alns. Convert chain (US survey) to alns instantly, with the exact factor, the formula and a reference table of common values.
ch to aln conversion table
| ch | aln |
|---|---|
| 1 ch | 33.87940907 aln |
| 2 ch | 67.75881815 aln |
| 3 ch | 101.6382272 aln |
| 5 ch | 169.3970454 aln |
| 10 ch | 338.7940907 aln |
| 20 ch | 677.5881815 aln |
| 50 ch | 1693.970454 aln |
| 100 ch | 3387.940907 aln |
| 250 ch | 8469.852269 aln |
| 500 ch | 16939.70454 aln |
| 1000 ch | 33879.40907 aln |
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.