CalcHub
Free unit conversionAs of 2026
Area (m²)
m²
1 pyeong = 3.30579 m² · 1 m² = 0.30250 pyeong
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How to calculate apartment size
While the official unit for apartment area is m², the unit 'pyeong' is also widely used in everyday life.
Area conversion formula
1 pyeong = 3.30579 m²
Pyeong = m² × 0.30250
m² = pyeong × 3.30579
Pyeong = m² × 0.30250
m² = pyeong × 3.30579
Gross Area vs. Exclusive Area
Supply Area (Sale Area) = Exclusive Area + Common Residential Area (Stairs, Corridors, Elevators, etc.)
Exclusive Area Ratio (%) = Exclusive Area ÷ Supply Area × 100 (Typically 70~85%)
Exclusive Area Ratio (%) = Exclusive Area ÷ Supply Area × 100 (Typically 70~85%)
The '84m²' in apartment sales advertisements refers to the gross floor area. The actual interior living space, the exclusive area, is approximately 59 to 63m².
Area by major floor plan
20-pyeong type: approx. 66m² · 25-pyeong type: approx. 83m² · 30-pyeong type: approx. 99m²
33-pyeong type: approx. 109m² · 40-pyeong type: approx. 132m² · 50-pyeong type: approx. 165m²
33-pyeong type: approx. 109m² · 40-pyeong type: approx. 132m² · 50-pyeong type: approx. 165m²
Frequently Asked Questions
How many m² is 1 pyeong?
1 pyeong = 3.30579 m². Conversely, 1 m² = approximately 0.3025 pyeong. An apartment with a supply area of 84 m² is approximately 25.4 pyeong.
How many pyeong is an 84m² apartment?
84 × 0.30250 = approximately 25.4 pyeong. In some sales advertisements, it is referred to as a “34-pyeong type,” but this is based on the gross floor area, while the net floor area is typically around 59 to 63 m².
What is the difference between the exclusive area and the gross area?
The exclusive area refers to the actual interior living space (rooms, living room, bathroom, etc.), while the gross area is the exclusive area plus common areas such as corridors and stairs. During the sale process, the gross area is used as the standard.