Pyeong ↔ square meters converter

Koreans still describe homes in 평 (pyeong). Type a number in any box and the others update.

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How big is one pyeong?

One pyeong is exactly 400/121 m² ≈ 3.3058 m², or about 35.58 ft². It comes from an old unit equal to a square 6 cheok on each side (about 1.82 m × 1.82 m), roughly the size of two tatami mats.

Quick mental math: pyeong × 3.3 ≈ m², and m² × 0.3 ≈ pyeong.

Since 2007, contracts and official listings in Korea must use square meters, but people, ads and real-estate agents still talk in pyeong every day.

Exclusive area vs. supply area

This is the part that confuses most newcomers. Korean apartments have two main sizes:

When someone says “a 34평 apartment” (34평형), they usually mean the supply area. The exclusive area of that apartment is typically about 84 m² (about 25.4 pyeong). So the space you actually live in is smaller than the pyeong number suggests.

What people sayExclusive area= pyeongTypical layout
“Studio / one-room”20–33 m²6–101 room, open kitchen
24평형 · 25평형59 m²17.82–3 bedrooms, 1–2 baths
32평형 · 34평형84 m²25.43 bedrooms, 2 baths
40평형대about 114 m²34.54 bedrooms, 2 baths

Supply area for the same exclusive size varies by building, so treat the “What people say” column as a rough guide. Always check the m² figures in the listing or contract.

Tips when you look at a listing