ch² to km²
39 unitsResult4.046856e-4
0.0004046856422km²
1 ch² × 0.0004046856422 = 0.0004046856422 km²
Convert Square chain to Square kilometer (ch² to km²)
1 square chain = 0.0004046856422 square kilometers. Convert square chains to square kilometers instantly, with the exact factor, the formula and a reference table of common values.
Formula
square kilometers = square chains × 0.0004046856422
ch² to km² conversion table
| ch² | km² |
|---|---|
| 1 ch² | 0.0004046856422 km² |
| 2 ch² | 0.0008093712845 km² |
| 3 ch² | 0.001214056927 km² |
| 5 ch² | 0.002023428211 km² |
| 10 ch² | 0.004046856422 km² |
| 20 ch² | 0.008093712845 km² |
| 50 ch² | 0.02023428211 km² |
| 100 ch² | 0.04046856422 km² |
| 250 ch² | 0.1011714106 km² |
| 500 ch² | 0.2023428211 km² |
| 1000 ch² | 0.4046856422 km² |
What is a square chain?
A square chain is the area of a square one surveyor's chain — 66 feet — on each side: 404.68564224 square meters.
The chain was the surveyor's basic measuring tool, and its square fits neatly into the old land system: ten square chains make exactly one acre.
In writing, the square chain is usually shortened to "ch²". One square chain is 404.6856422 square meters, and that ratio is what every number on this page is built from.