Pyeong to Square Meters Converter (평 to m²)

The pyeong (평) is the traditional Korean unit of floor and land area, and it is still how many people in Korea talk about the size of a home: a "34-pyeong apartment" is understood at once, even though official documents use square meters. This converter uses the defined value of exactly 400/121 m², about 3.3058 m², the area of a square one kan on each side, with the kan made up of 6 ja of 10/33 m each, 20/11 m in all.

Since July 2007, Korea has required statutory metric units in commercial dealings, so sales contracts, building registers and apartment notices state areas in square meters, and pyeong figures appear at most as an informal aside. Converting pyeong to square meters is how to check what an older listing, a conversation or a relative's description of a flat actually means. The familiar "34-pyeong" label usually counts supply area, which includes a share of stairs and corridors, so the private floor space is noticeably smaller.

How to use this tool

1. Type a value in the Pyeong box to see it in square meters, or type in the Square Meter box to convert the other way.
2. Press ⇄ to swap the two units, or Load example for a typical value.
3. Check the charts below for common values; for other units, open the Area converter.

Formula

m² = pyeong × 400 ÷ 121 (≈ pyeong × 3.305785)

pyeong = m² × 121 ÷ 400 = m² × 0.3025

Both factors come from exact definitions: 1 square meter = 0.3025 pyeong and 1 pyeong = 3.30578512397 square meters (shown to 12 significant digits).

Example

Two conversions worked with the same factors the converter uses:

34 평 × 3.30578512397 ≈ 112.397 m²

84 m² × 0.3025 = 25.41 평

Pyeong to Square Meter chart

Common values from pyeong to square meters, rounded to four decimal places.

Square Meter to Pyeong chart

The reverse direction for values people often look up.

Areas Koreans describe in pyeong

Quick mental estimate

Multiply by 3.3: 34 pyeong → 102 + 10.2 = 112.2 m². The shortcut is about 0.18% below the exact 3.3058, so the true figure, 112.4 m², is only 0.2 m² more.

Use the converter or the charts when the exact figure matters.

The two units

Pyeong (평): The pyeong (평) is a traditional Korean area unit. This converter uses 400/121 m² per pyeong, about 3.3058 m²; multiplying square metres by 0.3025 gives the equivalent number of pyeong.

Square Meter (m²): The square metre is the SI unit of area, the area of a square 1 metre on each side. Floor space of homes and offices is given in square metres in most countries.