Convert Square Foot to Tatami Mat

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Conversion Formula:

tatami = ft² × 0.057348

Convert Square Foot to Tatami Mat (ft² to tatami) 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

Square foot (ft²) - Imperial/US area unit

Square foot is an Imperial/US customary unit of area equal to a square 1 foot on a side. Used for floor space, building plans, and real estate listings.

  • Symbol: ft²
  • System: Imperial/US customary
  • Exact relations: 1 ft² = (0.3048 m)² = 0.09290304 m² (exact) = 144 in²
  • Other relations: 1 yd² = 9 ft²; 1 m² ≈ 10.7639104 ft²
  • Typical examples: room and apartment areas, carpet/laminate coverage, HVAC load calculations
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