Convert Square Rods to Square Kilometers
Convert Square Rods (sq rd) to Square Kilometers (km²) instantly and accurately.
Conversion Formula
km² = sq rd × 2.529285264e-5
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.
About Square Kilometers
A square kilometer (km²) is a metric unit of area equal to a square with sides of one kilometer (1,000 m × 1,000 m). It is used for measuring large land areas such as cities, forests, lakes, and countries. Manhattan (New York) is about 59 km², and Monaco (the second smallest country) is just over 2 km². This unit is essential in geography, urban planning, forestry, and environmental impact studies.
Quick Reference Table
| Square Rods (sq rd) | Square Kilometers (km²) |
|---|---|
| 1 sq rd | 2.529 × 10-5 km² |
| 2 sq rd | 5.059 × 10-5 km² |
| 5 sq rd | 0.000126464 km² |
| 10 sq rd | 0.000252929 km² |
| 25 sq rd | 0.000632321 km² |
| 50 sq rd | 0.00126464 km² |
| 100 sq rd | 0.00252929 km² |