Convert Dunam to Tatami Mat

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Conversion Formula:

tatami = du × 617.283951

Convert Dunam to Tatami Mat (du to tatami) instantly with accurate, readable results.

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From unit

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)
To unit

Tatami mat (畳, jō) - Japanese flooring unit of area

Tatami mat is a traditional Japanese flooring module used as a practical unit of area; room sizes are often stated by the count of mats (jō). Dimensions vary regionally, so one tatami has no single national standard.

  • Names/aliases: tatami, 畳 (jō); room size written as “n-jō”
  • System: Traditional Japanese (non-SI)
  • Typical sizes (area):

• Kyōma (Kyoto): 0.955 m × 1.910 m = 1.824 m² ≈ 19.63 ft²

• Chūkyōma (Nagoya): 0.910 m × 1.820 m = 1.656 m² ≈ 17.83 ft²

• Edoma/Kantōma (Tokyo area): 0.880 m × 1.760 m = 1.5488 m² ≈ 16.67 ft²

• Other regional modules exist; common range ≈ 1.55–1.82 m² per mat

  • Room estimates: 6-jō room ≈ 9–11 m² depending on region; 8-jō ≈ 12–15 m²
  • Construction note: buildings often use tatami modules as planning grids; mats are rectangular with length ≈ 2 × width