Convert Roods to Square Rods
Convert Roods (ro) to Square Rods (sq rd) instantly and accurately.
Conversion Formula
sq rd = ro × 40
About Roods
A rood (ro) is a traditional English unit of land area equal to one quarter of an acre, or 40 square rods, approximately 1,011.71 m². Originating in medieval England, the rood was used alongside the acre and the perch for describing land ownership. The name shares its root with 'rod,' the linear unit used to measure it. While largely obsolete in modern use, roods still appear in old English legal documents, historical land surveys, and certain rural property records in England and Wales.
About Square Rods
A square rod (sq rd), also called a perch or square pole, equals the area of a square with sides of one rod (5.0292 m or 16.5 ft), giving approximately 25.29 m². This traditional unit was central to land surveying before the adoption of the metric system and remains embedded in legal property descriptions in the United States. There are exactly 160 square rods in one acre, and 40 square rods in one rood. Old farmland deeds and archaic land records in the UK and US frequently reference perches and square rods.
Quick Reference Table
| Roods (ro) | Square Rods (sq rd) |
|---|---|
| 1 ro | 40 sq rd |
| 2 ro | 80 sq rd |
| 5 ro | 200 sq rd |
| 10 ro | 400 sq rd |
| 25 ro | 1000 sq rd |
| 50 ro | 2000 sq rd |
| 100 ro | 4000 sq rd |