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Conversion Formula:
Convert Square Decimeter to Rood (dm² to ro) 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 decimeter (dm²) - small metric area
Square decimeter is a metric unit of area equal to the area of a square with sides of 1 decimeter (0.1 meter). Used for small surface areas in product labeling, tiling, and heat-flux specifications.
- Symbol: dm²
- System: SI derived unit
- Exact relations: 1 dm² = (0.1 m)² = 0.01 m² = 100 cm² = 10,000 mm²
- Imperial/US equivalents: 1 dm² ≈ 0.107639 ft² ≈ 0.011959 yd² ≈ 15.5000 in²
- Typical examples: a 10 cm × 10 cm tile = 1 dm²; packaging surface area; heat flux quoted in W/dm²
Rood (rood) - traditional land area
Rood is a historical Imperial/US customary unit of area equal to one quarter of an acre. Used in older land records, field measurements, and some property descriptions.
- Symbol: none standardized (written as “rood”)
- System: Imperial/US customary (historic)
- Exact relations: 1 rood = 1/4 acre = 40 square rods (perches) = 2.5 square chains
- Other relations: 1 rood = 1 furlong × 1 rod = 10,890 ft² = 1,210 yd²
- Metric equivalents (exact): 1 rood = 1011.7141056 m²
- Typical examples: historical parcel sizes in deeds; subdivision remnants expressed as roods and perches