Convert Acre (US Survey) (ac (US)) to Square Chain (ch²) instantly.
Acre (US Survey) to Square Chain conversion
1 Acre (US Survey) (ac (US)) = 10.00004 Square Chain (ch²). To convert Acre (US Survey) to Square Chain, multiply the value by 10.00004.
| Acre (US Survey) (ac (US)) | Square Chain (ch²) |
|---|---|
| 1 | 10.00004 |
| 2 | 20.00008 |
| 5 | 50.0002 |
| 10 | 100.0004 |
| 25 | 250.001 |
| 50 | 500.002 |
| 100 | 1000.004 |
| 1000 | 10000.04 |
Frequently asked questions
How many Square Chain are in one Acre (US Survey)?
One Acre (US Survey) (ac (US)) equals 10.00004 Square Chain (ch²).
How do I convert Acre (US Survey) to Square Chain?
To convert Acre (US Survey) to Square Chain, multiply the value by 10.00004.
What is 10 Acre (US Survey) in Square Chain?
10 Acre (US Survey) = 100.0004 Square Chain.
About these units
Acre (US Survey) (ac (US))
The US survey acre is based on the US survey foot, making it slightly different from the international acre. With a value of 43,560 survey-square feet, it appears extensively in historical property records and federal land surveys. Because millions of acres in the United States were mapped using PLSS, the survey acre remains necessary for interpreting legal land rights, even though modern mapping often uses metric units or the international foot. This specialized acre illustrates how subtle unit differences can survive for centuries due to legal and administrative inertia.
Square Chain (ch²)
A square chain equals the area of a square one chain (~66 feet) per side, resulting in 4,356 square feet, or exactly 1/10 of an acre. This unit is closely linked to the chain, a surveyor's unit standardized by Edmund Gunter in the 17th century. Because 10 square chains make an acre, survey calculations for early colonial and American lands were extremely efficient. Square chains allowed surveyors to map and divide land rapidly using ropes or metal chains, producing a legacy seen in long, straight property lines still visible today across rural landscapes.