Convert circular inch to square chain
Please provide values below to convert circular inch [circ in] to square chain [ch^2], or Convert square chain to circular inch.
How to Convert Circular Inch to Square Chain
1 circ in = 1.25210144890561e-06 ch^2
Example: convert 15 circ in to ch^2:
15 circ in = 15 × 1.25210144890561e-06 ch^2 = 1.87815217335841e-05 ch^2
Circular Inch to Square Chain Conversion Table
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Circular Inch
A circular inch is a unit of area measurement representing the area of a circle with a diameter of one inch.
History/Origin
The circular inch originated as a specialized measurement in fields requiring precise circular area calculations, but it is not widely used in standard measurement systems and has limited historical adoption.
Current Use
Today, the circular inch is primarily used in niche applications such as engineering and manufacturing where circular area measurements are relevant, but it remains a rarely used unit outside specialized contexts.
Square Chain
A square chain (ch^2) is a unit of area equal to the area of a square with sides measuring one chain (66 feet) each, equivalent to 4356 square feet.
History/Origin
The square chain originated in land measurement practices in England, particularly used in surveying and land division during the 19th century, especially in the context of the Imperial system.
Current Use
Today, the square chain is largely obsolete and rarely used outside historical or land survey contexts; modern measurements typically employ acres or square meters.