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Length Converter
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Square metre to Pyeong
Converts square metre to pyeong with the exact defined factor. One square metre is 0.3025 pyeong.
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Enter a value to convert.
In short
One square metre is 0.3025 pyeong, so to convert square metre to pyeong you multiply by 0.3025, and to go back you multiply pyeong by 3.30579. 2 square metre is 0.605 pyeong, 5 is 1.5125 and 10 is 3.025. A pyeong is exactly the same area as a Japanese tsubo — 400/121 square metres, or 3.3058 m2. The useful mental figures are that a 84 m2 apartment, the most common size in Korea, is about 25.4 pyeong, and that "32 pyeong" means roughly 105 m2. Official listings have used square metres since 2007, but the pyeong never left everyday speech. The pyeong is used in South Korea, where apartment sizes are still quoted in pyeong in conversation even though listings must legally use square metres.
How to use the Square metre to Pyeong
- Type the value you want to convert.
- Pick the unit you are converting from and the unit you want.
- The converted value and the exact conversion factor are shown instantly.
About the Square metre to Pyeong
A pyeong is exactly the same area as a Japanese tsubo — 400/121 square metres, or 3.3058 m2. The useful mental figures are that a 84 m2 apartment, the most common size in Korea, is about 25.4 pyeong, and that "32 pyeong" means roughly 105 m2. Official listings have used square metres since 2007, but the pyeong never left everyday speech.
What people use it for
- Reading a listing or a document quoted in square metre.
- Checking a figure someone else converted.
- Getting the exact factor to reuse in a spreadsheet.
Details
| 1 Square metre | 0.3025 Pyeong |
|---|---|
| 1 Pyeong | 3.30579 Square metre |
| Definition | 1 pyeong = 3.30579 m2 = 35.583 ft2, identical to the Japanese tsubo. |
| Used in | South Korea, where apartment sizes are still quoted in pyeong in conversation even though listings must legally use square metres |
| Conversion type | Exact multiplication — both units are defined against the Square metre |
The maths behind it
This tool uses pyeong = square metre × 0.3025, an exact defined factor with no offset. Every intermediate value is shown on screen, so the result can be checked by hand.
1 pyeong = 3.30579 m2 = 35.583 ft2, identical to the Japanese tsubo.
Frequently asked questions
Why do Korean listings say square metres but everyone says pyeong?
Because the change was legal rather than cultural. Korea made metric units mandatory in property advertising in 2007, so the paperwork switched; conversation did not. People still size a flat in pyeong and then convert, which is exactly the gap this page fills.
What is the exact factor?
One square metre is 0.3025 pyeong, and one pyeong is 3.30579 square metre. It is a defined value rather than a measurement, so it does not change and the conversion is exact in both directions.
Is the Square metre to Pyeong free, or is there a paid tier?
Free, unlimited, and no email address required. You can use it a hundred times a day and nothing changes.
Does anything I enter leave my computer?
No. The Square metre to Pyeong runs entirely in your browser using JavaScript. Nothing is transmitted, logged or stored, which you can verify yourself in the Network tab of your browser's developer tools.
How is the result calculated?
It uses pyeong = square metre × 0.3025, an exact defined factor with no offset. The full working is printed under the result, so you can follow every step rather than trusting a black box.
What do I get if I try it?
Enter 10 square metre and the Square metre to Pyeong returns 3.025 pyeong.
Who is the Square metre to Pyeong for?
The jobs it is built for: reading a listing or a document quoted in square metre. Checking a figure someone else converted. Getting the exact factor to reuse in a spreadsheet. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
Is there a catch?
1 pyeong = 3.30579 m2 = 35.583 ft2, identical to the Japanese tsubo.
What figures does the Square metre to Pyeong work from?
1 Square metre is 0.3025 Pyeong. 1 Pyeong is 3.30579 Square metre. Definition is 1 pyeong = 3.30579 m2 = 35.583 ft2, identical to the Japanese tsubo.. These are printed on the page itself, so you do not have to take them on trust.
Can I rely on this for exact work?
The calculation runs in double precision and the result is shown to ten significant figures, so converting a value and converting it back returns the original. What is displayed is rounded for readability; what is copied is not.
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