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Conversion Formula:
Convert Square Rod to Dunam (rod² to du) 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 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
Dunam (donum; dönüm) - regional land area
Dunam is a regional metric land unit widely used in the Middle East, most commonly defined today as 1,000 square meters. Used in agriculture, real estate, and land records; note that historical values vary by country.
- Names/aliases: dunam, donum, dönüm; often equated with the decare
- System: Metric (non-SI, regional)
- Exact (modern metric): 1 dunam = 1,000 m² = 0.1 ha ≈ 0.247105381 acres
- Regional variants (historical/legal): Cyprus donum ≈ 1,338 m²; Iraq dunam = 2,500 m²; older Ottoman-era values ranged ~900–1,600 m²
- Typical examples: farm plots and urban parcels listed in dunams; planning and zoning documents across Israel, Palestine, Jordan, Lebanon, Turkey (usage/name varies)