Convert Tatami Mat to Are

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Conversion Formula:

a = tatami × 0.0162

Convert Tatami Mat to Are (tatami to a) 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.

From 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
To unit

Are (a) - metric area unit

Are is a metric unit of area equal to 100 square meters. Used for measuring small land parcels, gardens, and property listings; closely related to the hectare (100 ares).

  • Symbol: a
  • System: Metric (non-SI, accepted for use with SI)
  • Exact relations: 1 a = 100 m²; 1 ha = 100 a; 1 km² = 10,000 a
  • Imperial/US equivalents: 1 a ≈ 1076.39104 ft² ≈ 119.599005 yd² ≈ 0.0247105381 acres
  • Typical examples: garden plots ~1–5 a; small property subdivisions; cadastral records in parts of Europe