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Convert Dunam to Acre (du to ac) 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.
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)
Acre (ac) - Imperial/US land area
Acre is a traditional unit of area used for land measurement in the UK, US, and other countries. Used in real estate, agriculture, and land records; metrically it converts exactly because the foot is defined in meters.
- Symbol: ac
- System: Imperial/US customary (non-SI, accepted for use with SI
- Exact relations: 1 acre = 43,560 ft² = 4,840 yd² = 160 square rods (perches/poles) = 10 square chains
- Metric equivalents (exact): 1 acre = 4046.8564224 m² ≈ 0.40468564224 ha
- Typical examples: suburban lots (fractions of an acre); farm fields of tens to hundreds of acres; sports complexes measured in multiple acres