Pyeong to Square Meter Converter (Pyeong ↔ m²)

Convert between Korean pyeong (평), square meters (m²), and square feet (ft²). 1 pyeong = 400/121 m² ≈ 3.3058 m² — great for comparing Korean real-estate listings with metric or imperial measurements.

Area Input

1 pyeong = 400/121 m² ≈ 3.3058 m² (the exact fractional ratio is used).

Conversions

Pyeong (평)

9.9825 pyeong

Square Meters (m²)

33

Square Feet (ft²)

355.209 ft²

Quick Reference

  • 10 pyeong ≈ 33.06 m² ≈ 355.83 ft²
  • 25 pyeong ≈ 82.64 m² ≈ 889.58 ft²
  • 33 pyeong ≈ 109.09 m² ≈ 1,174 ft² (typical Korean 32–34평 apartment)
  • 84 m² ≈ 25.41 pyeong (Korean national-housing standard)

Formula and decision logic

1 pyeong (평) is exactly 400/121 m² (≈ 3.3058 m²). This converter shows the same area in pyeong, square meters, and square feet at once.

1 평 = 400/121 m² ≈ 3.3058 m²

1 m² = 121/400 평 ≈ 0.3025 평 ≈ 10.7639 ft²

Worked examples

Standard Korean apartment 33 m²

Input: 33 m²

Result: ≈ 9.98 평 / ≈ 355.2 ft²

Typical 25평 unit

Input: 25 평

Result: ≈ 82.6 m² / ≈ 889.6 ft²

How to use this calculator

  1. 1Pick a unit and enter a value
  2. 2See the area in the other two units immediately
  3. 3Use the quick reference to sanity-check common sizes

How to read the result

  • Real-estate listings in Korea historically use “전용면적” (exclusive area) in m² but everyday conversation still references 평.
  • Square feet helps cross-check with overseas listings; 1 평 is roughly 35.58 ft².

Common input mistakes

  • Treating 1 평 as exactly 3.3 m² (it is closer to 3.3058 m²; small differences add up on large units).
  • Mixing 공급면적 (supply area, includes common space) with 전용면적 (private area) when comparing apartments.

Frequently asked questions

What is 1 pyeong in m²?

Exactly 400/121 m² (≈ 3.3058 m²). Rounding to 3.3 m² is common but introduces error on large areas, so this calculator uses the exact ratio.

Why does my 84 m² apartment look like both 25 and 34 pyeong?

Korean apartments are described both by exclusive area (전용면적) and supply area (공급면적, includes shared corridors and stairs). 84 m² exclusive ≈ 25 pyeong; the corresponding 공급면적 ≈ 34 pyeong.

How big is 1 pyeong in square feet?

About 35.58 ft². The converter shows pyeong → m² → ft² together.

Can I enter ft² and get pyeong back?

Yes. Pick ft² in the unit selector and the calculator will show the matching pyeong and m² values.

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