Pyeong ↔ m² Converter
Convert between Korean pyeong (평) and square meters.
What is Pyeong ↔ m² Converter?
Pyeong ↔ m² Converter switches between pyeong (평) — the traditional Korean unit for apartment and real-estate area — and square meters, both ways (1 pyeong ≈ 3.3058 m²). Type a number in either field and the other updates instantly; quick-pick buttons cover common Korean apartment sizes. It's free and runs in your browser.
Key features
- Two-way conversion between pyeong and square meters
- Standard ratio: 1 pyeong ≈ 3.3058 m²
- Quick-pick buttons for 10, 18, 24, 32, 34, 42 pyeong
- Reads Korean apartment sizes: 84 m² ≈ 25.4 pyeong
How to convert pyeong (평) and square meters
In Korea, apartments, offices, and land are still talked about in pyeong (평), but contracts, registries, and listings print the official area in square meters (m²). So you constantly need to translate between "a 25평 apartment" and "84 m²" — when comparing listings, reading a lease, or picturing how big a place actually is. This converter does it both ways, instantly, in your browser.
How to use
- Type a value into either the pyeong or m² field. The other updates automatically, rounded to two decimals.
- Tap a quick-pick button — 10, 18, 24, 32, 34, or 42평 — to jump straight to the apartment sizes people search for most.
The exact ratio
One pyeong is defined as 400/121 m² ≈ 3.3058 m², and going the other way, 1 m² = 121/400 = 0.3025 pyeong exactly. So:
- 84 m² ≈ 25.4평
- 59 m² ≈ 17.8평
- 34평 ≈ 112.4 m²
The tool uses the exact fraction, not a rounded 3.3, so the numbers stay consistent even for large plots of land. The unit itself comes from a traditional square about 1.818 m on a side (6 Korean cheok), which is where 3.3058 m² originates.
Common exclusive-area sizes translate like this:
- 59 m² ≈ 17.8평 (a compact two-bed)
- 84 m² ≈ 25.4평 (the standard mid-size)
- 114 m² ≈ 34.5평 (a large three-bed)
The gotcha that trips up apartment hunters: which "area"?
The math is trivial; the confusion isn't. Korean listings quote two different areas, and converting the wrong one gives a misleading size:
- 전용면적 (exclusive area) — the space inside your front door: rooms, kitchen, bathrooms. This is what the registry and most legal documents use. Korea's famous "국민평형" is 84 m² of exclusive area ≈ 25.4평.
- 공급면적 (supply area) — exclusive area plus your share of hallways, stairwells, and lobby. When someone calls a place a "34평 아파트," they almost always mean supply area (~112 m²), even though its exclusive area is that same 84 m².
That's why the "same" apartment can be described as both 84 m² and 34평 without either being wrong — they're measuring different things. When you convert, know which figure you started from: a m² number pulled from the registry is exclusive area; a 평 number from a real-estate ad is usually supply area.
Notes
- Land vs. floor area. Pyeong is also used for land plots (대지). The unit is the same; only the context differs.
- It's a fixed multiplication. There's no rounding surprise beyond the two-decimal display — the conversion is one constant, computed locally, with nothing sent to a server.
Frequently asked questions
- What is the exact pyeong-to-square-meter ratio?
- One pyeong is defined as 400/121 square meters, which is about 3.3058 m2, and 1 m2 equals 0.3025 pyeong exactly. The tool uses the exact fraction rather than a rounded 3.3, then displays the result to two decimals.
- Why is my apartment listed as both '84 m2' and '34 pyeong'?
- They measure different areas. 84 m2 is the exclusive area (jeonyong), the space inside your door, which is about 25.4 pyeong. '34 pyeong' usually refers to the supply area (gonggeup), which adds your share of hallways and lobby and comes to roughly 112 m2 for that same unit.
- How big is Korea's 'national size' 84 m2 in pyeong?
- The 84 m2 exclusive-area standard, often called gungmin pyeonghyeong, works out to about 25.4 pyeong. It's the most common mid-size apartment layout in Korea.
- When I convert, which figure am I actually starting from?
- A square-meter number pulled from the registry or a lease is exclusive area, while a pyeong number from a real-estate ad is usually supply area. Knowing which basis you started with matters, or the converted size will mislead you.
- What do the quick-pick buttons do?
- They jump to the most-searched apartment sizes: 10, 18, 24, 32, 34, and 42 pyeong. Tapping one fills the pyeong field and instantly shows the equivalent square meters.
Privacy
The conversion is a fixed-ratio multiplication done locally; no data you enter is transmitted anywhere.