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Pyeong to Square Meters Converter

Convert between pyeong, square meters and square feet, and see how big that actually is

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What one pyeong is

Pyeong to square metersm²=pyeong×400÷121
One pyeong is 400/121 m², about 3.3058m². Rounding it to 3.3 is already off by more than 0.17m² at 30 pyeong, and the gap widens with the area.
The square foot figure is exact, fixed by the 1959 international yard and pound agreement.
UnitIn square metersWhere it is used
Pyeong3.3058m² (400/121)Korean conversation and property marketing
Square meter1m²Contracts, registers and listings, as the law requires
Square foot0.09290304m²The US, Canada, Hong Kong and Singapore

Reading a Korean listing

A listing headed 84m² and an advert for the same block calling it 34 pyeong are not a contradiction. The first is the space inside your door, the second counts the corridors too.
Platforms and the Ministry of Land publish exclusive area, so that is the figure to compare between listings.
If the listing saysIt means
전용 84m²84m² exclusive, roughly 25 pyeong or 904 square feet
공급 112m²112m² supply area, which is that same flat with shared space added
34평34 pyeong, a marketing name based on supply area
원룸A studio, typically 20 to 33m² exclusive

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Why one flat has two sizes

All three describe the same flat. Only compare listings that quote the same one, and assume exclusive area unless told otherwise.
Area nameWhat it countsWhere you meet it
Exclusive areaThe space behind your own front doorListings and the government transaction database
Supply areaExclusive area plus stairwells, corridors and lift lobbiesThe '34 pyeong' name a developer gives a unit
Contract areaSupply area plus car parks and the management officeA pre-sale contract

Sizes you will actually see

84m² is the standard Korean family flat, usually three bedrooms. The gap between the second and third columns is the shared space.
Exclusive areaIn pyeongSold asIn square feet
39m²11.817 pyeong420
49m²14.8221 pyeong527
59m²17.8525 pyeong635
74m²22.3930 pyeong797
84m²25.4134 pyeong904
101m²30.5540 pyeong1087
114m²34.4945 pyeong1227
134m²40.5352 pyeong1442

FAQ ❓

About 25.4 pyeong. Estate agents will still call that flat a '34 pyeong' unit, because 34 counts the stairwells, corridors and lift lobbies as well. The 84 is what is inside your front door, and it is the number Korean listings and the government's transaction database use.
400/121 square meters, which comes to roughly 3.3058m². Plenty of sites round it to 3.3, and that is already off by more than 0.17m² at 30 pyeong, growing as the area does. This converter keeps it as a fraction and rounds only once, at the end.
Korea measures a flat three ways. Exclusive area is the space behind your own front door. Supply area adds the residential shared space, which is where the marketing 'pyeong' figure comes from. Contract area adds car parks and management offices on top, and that is what a pre-sale contract states.
Exclusive area. Property platforms and the Ministry of Land's public transaction system both publish it, because it is the space you actually live in. Only the marketing name for a unit uses supply area, which is why the two numbers never match.
No. Korean law requires metric units for contracts and official records, so every contract, register entry and listing is written in square meters. Pyeong survives in conversation, and in the nickname a developer gives a unit, which is exactly why you end up converting.
The most common build is 84m² exclusive, roughly 25 pyeong or 904 square feet, usually three bedrooms. Below that, 59m² is the standard smaller unit, and 39 to 49m² covers studios and one-bedrooms. Anything over 114m² counts as large in a Korean city.

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