Convert Square Foot (US Survey) (ft² (US)) to Square Chain (ch²) instantly.
Square Foot (US Survey) to Square Chain conversion
1 Square Foot (US Survey) (ft² (US)) = 0.00022956933 Square Chain (ch²). To convert Square Foot (US Survey) to Square Chain, multiply the value by 0.00022956933.
| Square Foot (US Survey) (ft² (US)) | Square Chain (ch²) |
|---|---|
| 1 | 0.00022956933 |
| 2 | 0.00045913866 |
| 5 | 0.0011478466 |
| 10 | 0.0022956933 |
| 25 | 0.0057392332 |
| 50 | 0.011478466 |
| 100 | 0.022956933 |
| 1000 | 0.22956933 |
Frequently asked questions
How many Square Chain are in one Square Foot (US Survey)?
One Square Foot (US Survey) (ft² (US)) equals 0.00022956933 Square Chain (ch²).
How do I convert Square Foot (US Survey) to Square Chain?
To convert Square Foot (US Survey) to Square Chain, multiply the value by 0.00022956933.
What is 10 Square Foot (US Survey) in Square Chain?
10 Square Foot (US Survey) = 0.0022956933 Square Chain.
About these units
Square Foot (US Survey) (ft² (US))
The US survey square foot is defined using the US survey foot and differs minutely from the international square foot. While the difference is negligible in everyday contexts, in land surveying even tiny discrepancies matter because property boundaries, right-of-way extents, and engineering alignments may accumulate errors over long distances. Surveyors and civil engineers must interpret historical documents using survey-based values to ensure legal consistency with old plats, deeds, and boundary descriptions.
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.