Convert Acres to Square Furlongs
Convert Acres (ac) to Square Furlongs (fur²) instantly and accurately.
Conversion Formula
fur² = ac × 0.1
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.
About Square Furlongs
A square furlong is an area unit equal to a square with sides of one furlong (220 yards or ~201.17 m), approximately 40,469 m² or exactly 10 acres. The furlong (from Old English 'furrow-long') was historically the standard ploughing distance, and 10 square furlongs equals one acre - a relationship that made traditional land surveying convenient. While square furlongs are rarely used in official modern measurements, they appear in historical land surveys, British horse racing contexts, and as a handy reference for visualising 10-acre blocks.
Quick Reference Table
| Acres (ac) | Square Furlongs (fur²) |
|---|---|
| 1 ac | 0.1 fur² |
| 2 ac | 0.2 fur² |
| 5 ac | 0.5 fur² |
| 10 ac | 1 fur² |
| 25 ac | 2.5 fur² |
| 50 ac | 5 fur² |
| 100 ac | 10 fur² |