# Square chain conversions

The square chain conversion selector here selects the area/surface measurement unit to convert to starting from square chains (sq ch). To make a conversion starting from a unit of area other than square chain, simply click on the "Reset" button.

## About square chain

The **square chain** is a unit of area in the Imperial system of units equal to 404.685642 square meters (1 sq ch = 404.685642 m^{2}), the standard derived unit of area in the International System of Units (SI).

The square chain (sq ch) is also equal to 4.04685642 ares (a) or 0.0404685642 hectares (ha) (units of area in the metric system), or 4.04685642 × 10^{-4} square kilometers (km^{2}) (a unit of area in the SI), or 0.1 acres (ac), or 4,356 square feet (sq ft) or 484 square yards (sq yd), which are Imperial / US customary units of area.

The square chain (sq ch) is an Imperial unit of area. The chain (ch) is a unit of length in the Imperial system of units. An area of 1.0 square chain is the area of a square that is 1.0 chain on each side.

Symbol: sq ch

Plural: square chains