East Asia

Pyeong (land unit)

The Korean floor-space unit, defined like Japan’s tsubo: 400/121 m² (about 3.3058 m²). Still used informally in South Korea. Also written 평, 坪, Pyong, py.

1 pyeong = 3.3058 m² = 35.5832 sq ft = 0.000816877 acresUsed in: South Korea, North Korea

1 pyeong =
3.3058 m²
1 pyeong = 3.3058 m²
The value in every unit
UnitValue
Square meters (m²)3.3058 m²
Square feet (ft²)35.5832 ft²
Square yards (yd²)3.9537 yd²
Acres (ac)0.000816877 ac
Hectares (ha)0.000330579 ha
Pyeong1 pyeong

Pyeong in other units

m²sq ftacreshectares
3.305835.58320.0008168770.000330579
  • = 1 kan × 1 kan = 36 square Korean feet = 400/121 m²

About the pyeong

A pyeong is a square kan, 36 square Korean feet. Its present value, 400/121 m² or about 3.3058 m², dates from the Japanese occupation, when Korean units were aligned with Japanese ones. It remains the way many Koreans think about apartment and office size.

South Korea adopted the metric system in 1961, and from 1 July 2007 commercial use of the pyeong became punishable by fines. Listings now give square meters, often with the pyeong figure alongside. To convert, multiply square meters by 0.3025: an 84 m² apartment is about 25.41 pyeong.

Related measures

  • 1 pyeong = 400/121 m² ≈ 3.3058 m²
  • 1 m² = 0.3025 pyeong
  • Same size as the Japanese tsubo and Taiwanese ping

Quick table

PyeongSquare feetSquare metersAcres
135.58323.30580.000816877
271.16636.61160.00163375
5177.915916.52890.00408439
10355.831733.05790.00816877
20711.663566.11570.0163375
501,779.16165.28930.0408439
1003,558.32330.57850.0816877

Sources

Spotted a value that’s wrong for your area, or a regional value we should add? Email support@landmeasure.app with a source.

Frequently asked questions

How many square meters is 1 pyeong?

About 3.3058 m² (exactly 400/121 m²), or 35.58 sq ft.

Is the pyeong still legal in South Korea?

Not for commerce. Since 1 July 2007 using the pyeong in commercial dealings can be fined, and official figures are in square meters, though people still use it informally.

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