Select a category
Conversion Formula:
Convert Square Mile to Square Rod (mi² to rod²) instantly with accurate, readable results.
Convert between square meters, acres, square feet, hectares, and other common units with our Area Unit Converter. This intuitive unit conversion tool helps you calculate land size, floor space, and surface area across both metric and imperial systems. Whether you're working on real estate, construction, or geography tasks, our area unit conversion calculator ensures precise and instant results.
Square mile (mi²) - large land area
Square mile is an Imperial/US customary unit of area equal to a square 1 mile on a side. Used for cities, counties, and large land tracts.
- Symbol: mi²
- System: Imperial/US customary
- Exact relations: 1 mi² = (5280 ft)² = 27,878,400 ft² = 3,097,600 yd² = 640 acres
- Metric equivalents: 1 mi² = (1609.344 m)² = 2,589,988.110336 m² ≈ 2.58999 km²
- Typical examples: municipal areas, county sizes, watershed extents
Square rod (sq rd; also perch, pole, lug) - traditional land area
Square rod is a historical Imperial/US customary unit of area equal to a square one rod on a side. Used in older land records and surveying alongside roods and acres.
- Symbols: sq rd, rd²; also “square perch”
- System: Imperial/US customary (historic)
- Exact relations: 1 sq rd = (16.5 ft)² = 272.25 ft² = (5.5 yd)² = 30.25 yd² = (5.0292 m)² = 25.29285264 m² (exact)
- Other relations: 40 sq rd = 1 rood; 160 sq rd = 1 acre; 16 sq rd = 1 square chain
- Typical examples: deed descriptions such as “2 roods 13 perches”; 19th-century cadastral plans