Convert pyeong and m² precisely
Pyeong is the traditional Korean area unit used for homes and land. One pyeong equals exactly 400/121 ≈ 3.3058 m². This tool converts pyeong→m² and m²→pyeong, and computes pyeong from a width × height in meters.
| Pyeong | m² (approx) | Common name |
|---|---|---|
| 18 | 59 | small |
| 25.4 | 84 | "national size" (34-pyeong type) |
| 32 | 106 | mid-size |
| 40 | 132 | larger |
The big trap: net vs. supplied area
A unit called "34-pyeong" is often 84 m² (about 25.4 pyeong) in net terms. Why?
- Net area (전용면적): the actual interior space — the basis for registration and tax (e.g. 84 m²).
- Supplied area (공급면적): net area plus shared hallways and stairs — usually what "○○-pyeong type" refers to (≈ 112 m² ≈ 34 pyeong).
So the same home is called both 84 m² (net) and 34-pyeong (supplied). The m² figure is usually the net area, so converting it straight to pyeong will look smaller than the marketed pyeong type — that's expected.
Rectangles too
Enter width and height in meters to get both m² and pyeong — handy for rooms, shops, or land. Everything runs in your browser. For other units, see the Unit Converter.
Reading Korean listings as a foreigner
Korean apartment and land listings quote area in m² and, in conversation, in pyeong. Quick reference:
| Pyeong | m² | sq ft |
|---|---|---|
| 10 | 33.1 | 356 |
| 20 | 66.1 | 712 |
| 25.4 (84 m², "34-pyeong type") | 84 | 904 |
| 34 | 112.4 | 1,210 |
| 1,224 | 4,047 | 43,560 (1 acre) |
Remember that a "34-pyeong" apartment is usually about 904 sq ft of actual living space (84 m² net), not 1,210 sq ft — the bigger figure includes shared hallways and stairs. For land, one acre is about 1,224 pyeong. When you compare monthly rent or a jeonse deposit, the brokerage fee calculator shows what the agent may charge.