Pyeong ↔ Square Meter (m²) Converter

Enter a pyeong or square meter (m²) value to see the converted value, and add an exclusive rate (%) to calculate the actual usable area (pyeong) from the supply area.

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Calculated using 1 pyeong = 3.305785 m² (400/121). Supply area is the exclusive area plus common area (stairs, hallways, etc.); the exclusive rate is the ratio of exclusive area to supply area.

About pyeong and square meter conversion

"Pyeong" (평) is a traditional Korean unit of area still widely used in real estate alongside the official metric square meter, equal to about 3.3058 square meters. This tool converts freely between pyeong and square meters in either direction, and can additionally account for "exclusive rate" (전용률) — the percentage of a unit's total floor area that's actually usable private space, as opposed to shared common areas like hallways and stairwells.

How the conversion and exclusive-rate calculation work

The basic conversion multiplies square meters by roughly 0.3025 to get pyeong, or divides pyeong by that factor to get square meters, based on the fixed relationship of 1 pyeong = 3.3058 m². When you also enter an exclusive rate, the tool treats your input value as the "supply area" (공급면적, the total floor area including shared common space) and multiplies it by the exclusive rate to estimate the actual exclusive/private area (전용면적) and its pyeong equivalent — the number most relevant to how much livable space you actually get.

Frequently asked questions

What's the difference between supply area and exclusive area?
Supply area (공급면적) is the total floor area a unit is allocated, including a share of common spaces like hallways, stairwells, and the building's shared facilities. Exclusive area (전용면적) is only the space inside your unit's own walls that you exclusively use — real estate listings in Korea often advertise the larger supply area figure, so knowing the exclusive rate helps you understand your actual livable space.
Why does exclusive rate vary between buildings?
Exclusive rate depends on a building's structure and design — apartments with more shared amenities, wider hallways, or more common facilities tend to have a lower exclusive rate (meaning a larger share of the supply area goes to shared space), while more efficiently designed buildings have a higher exclusive rate.
Is there a typical exclusive rate I can assume if I don't know mine?
Typical apartment exclusive rates in Korea commonly fall somewhere around 75–85%, though this varies significantly by building age, complex type, and design — check your specific unit's actual registered exclusive area for an accurate figure rather than assuming a typical percentage.