Rood

Physical unit
Unit name	Rood
Unit symbol	${\ displaystyle \ mathrm {ro.}}$
Physical quantity (s)	Area
Formula symbol	${\ displaystyle A}$
dimension	${\ displaystyle {\ mathsf {L ^ {2}}}}$
system	Anglo-American system of measurement
In SI units	${\ displaystyle \ mathrm {1 \, ro. = 1 \, 011 {,} 714 \, 105 \, 6 \; m ^ {2}}}$
Derived from	acre

Rood is an Anglo-American unit of area. The unit symbol is ro.

1 rood = ¼ acre = 1210 sq.yd = 10,890 sq.ft. = 1011.7141056 m²

1 square mile = 640 acres = 2,560 rood

In German, the unit is also known as a quarter morning .