坪変換機 (평수 계산기)
坪（평）、平方メートル、平方フィートを相互変換します。1坪 = 3.3058 m²。
Overview
One pyeong (평) equals 400/121 square metres, or approximately 3.3058 m². The odd ratio is exact rather than approximate: the unit derives from a square of one ken per side, and the metric definition fixed under the Meiji measurement law reduces to that fraction. Multiplying pyeong by 3.3058 converts to square metres; dividing reverses it.
変換式
1 坪 = 3.3058 m² = 35.5834 sqft (正確に: 400/121 m²)
韓国の一般的なマンションサイズ
| 坪 | m² | sqft | |
|---|---|---|---|
| 18평 | 59.5 | 640.5 | ワンルーム / 1LDK |
| 24평 | 79.3 | 854.0 | 2LDK（小） |
| 25평 | 82.6 | 889.6 | 2LDK（標準） |
| 32평 | 105.8 | 1138.7 | 3LDK（標準） |
| 33평 | 109.1 | 1174.1 | 3LDK（全国標準） ★ |
| 34평 | 112.4 | 1209.5 | 3LDK（大） |
| 43평 | 142.1 | 1530.0 | 4LDK |
| 59평 | 195.0 | 2099.5 | 5LDK以上（プレミアム） |
行をクリックするとそのサイズが入力されます。表示サイズは概算の供給面積（공급면적）です。
How to Use
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1
Enter the value
Type the amount you want to convert into the Pyeong Converter.
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2
Choose the units
Select the unit to convert from and the unit to convert to.
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3
Read the converted value
The conversion updates instantly in your browser — no button, nothing sent to a server.
About
Korean apartments are advertised in pyeong even though the unit was removed from official use in 2007, and listings mix two areas that differ by roughly a quarter. Supply area (공급면적) includes a share of common corridors and lobbies; exclusive area (전용면적) counts only the interior of the dwelling. A home marketed as 32 pyeong is commonly registered at 84 m² exclusive.
The Japanese tsubo shares the identical definition, so a pyeong and a tsubo are the same area — a legacy of the common measurement standard imposed during the colonial period.