Convert Square Chains to Acres
Convert Square Chains (ch²) to Acres (ac) instantly and accurately.
Conversion Formula
ac = ch² × 0.1
About Square Chains
A square chain (ch²) is a surveying unit equal to the area of a square with sides of one Gunter's chain (66 feet or ~20.12 m), approximately 404.69 m². Ten square chains equal exactly one acre, making it the natural subdivision unit in traditional land surveying. The US Public Land Survey System used chains to lay out townships and sections, and square chains appear throughout old legal property descriptions and government land grants across North America. One square chain equals exactly 16 square rods.
About Acres
An acre is a traditional unit of land area used primarily in the United States, United Kingdom, and countries with British heritage. One acre equals 43,560 ft² or about 4,047 m². Historically based on the area a yoke of oxen could plow in one day, it remains the standard for measuring agricultural land, residential plots, and rural properties. A football field (without end zones) is roughly 1.32 acres, and most suburban house lots range from 0.25 to 1 acre.
Quick Reference Table
| Square Chains (ch²) | Acres (ac) |
|---|---|
| 1 ch² | 0.1 ac |
| 2 ch² | 0.2 ac |
| 5 ch² | 0.5 ac |
| 10 ch² | 1 ac |
| 25 ch² | 2.5 ac |
| 50 ch² | 5 ac |
| 100 ch² | 10 ac |