# Area Converter > Convert area units: pyeong↔㎡, acre↔㎡, pyeong↔acre. ## What is the Area Converter? The Area Converter is a tool that converts between different area measurement units. It supports three conversion tabs: pyeong↔㎡ (square meters), acre↔㎡, and pyeong↔acre. The pyeong (평) is a traditional Korean unit of area that equals approximately 3.3058 square meters (about 35.58 square feet). Despite Korea officially adopting the metric system, pyeong remains the most commonly used unit for real estate in Korea. Apartment sizes, office spaces, and land areas are still frequently expressed in pyeong. A 30-pyeong apartment (approximately 99㎡) is a standard family-sized unit in Korea. The square meter (㎡) is the SI standard unit of area used internationally. In Korea, official documents and newer real estate listings use ㎡, but most people still think in pyeong. The acre is primarily used for land measurement in the US, UK, and some former British colonies. One acre equals 4,046.86㎡ or about 1,224 pyeong. It's commonly used for farms, large properties, and land development. This converter is essential for anyone dealing with Korean real estate, international property comparison, or land measurement conversions. ## How to Use 1. Select a conversion tab. • 평 ↔ ㎡: Convert between Korean pyeong and square meters. Most commonly used for apartments and offices in Korea. • 에이커 ↔ ㎡: Convert between acres and square meters. Used for large land areas. • 평 ↔ 에이커: Direct conversion between pyeong and acres. 2. Enter a value in either field. Type a number and the conversion appears instantly. 3. Read the converted result. Common Korean Real Estate Examples: • Studio (원룸): 7-10평 = 23-33㎡ • Small apartment: 18평 = 59.5㎡ (called '59㎡' in listings) • Medium apartment: 25평 = 82.6㎡ • Standard family apt: 34평 = 112.4㎡ • Large apartment: 50평 = 165.3㎡ Note: In Korean real estate, 'supply area' (공급면적) is larger than 'exclusive area' (전용면적). The ㎡ in apartment listings usually refers to exclusive area, while pyeong traditionally referred to supply area. A '34-pyeong' apartment typically has about 84㎡ exclusive area. ## Conversion Formulas ■ Pyeong ↔ Square Meters 1 평 = 3.3058 ㎡ (exact: 400/121 ㎡) 1 ㎡ = 0.3025 평 Formula: ㎡ = 평 × 3.3058 Formula: 평 = ㎡ ÷ 3.3058 (or ㎡ × 0.3025) Example: 34평 = 34 × 3.3058 = 112.4㎡ Example: 84㎡ = 84 × 0.3025 = 25.41평 ■ Acre ↔ Square Meters 1 acre = 4,046.8564 ㎡ (exact) 1 ㎡ = 0.000247105 acres Formula: ㎡ = acres × 4,046.8564 Formula: acres = ㎡ ÷ 4,046.8564 Example: 2 acres = 2 × 4,046.86 = 8,093.71㎡ Example: 10,000㎡ = 10,000 ÷ 4,046.86 = 2.471 acres ■ Pyeong ↔ Acres 1 acre = 1,224.17 평 1 평 = 0.000817 acres Formula: acres = 평 ÷ 1,224.17 Formula: 평 = acres × 1,224.17 ■ Other Area Units Reference 1 ㎡ = 10.764 sq ft | 1 sq ft = 0.0929 ㎡ 1 acre = 43,560 sq ft | 1 hectare = 10,000 ㎡ = 2.471 acres 1 평 = 35.58 sq ft | 1 정(町) = 3,000평 = 9,917.4㎡ ■ Korean Real Estate Area Terms 전용면적 (exclusive area): actual living space in ㎡ 공급면적 (supply area): includes common areas, usually in 평 계약면적: may include additional common areas ## Helpful Tips ■ Quick Pyeong ↔ ㎡ Conversion • 평 to ㎡: Multiply by 3.3. Quick and close enough for estimates. • ㎡ to 평: Multiply by 0.3 (or divide by 3.3). • Example: 30평 ≈ 99㎡, 84㎡ ≈ 25평 ■ Korean Apartment Size Guide • 59㎡ (18평형): 1-2 bedroom, couples or small families • 74㎡ (22평형): 2-3 bedroom, small families • 84㎡ (25평형): 3 bedroom, standard family size (most common) • 112㎡ (34평형): 3-4 bedroom, larger families • 135㎡ (41평형): 4+ bedroom, spacious • 165㎡ (50평형): luxury apartment ■ Understanding Korean Real Estate Listings When listings say '34평' or '84㎡': • 34평 refers to supply area (공급면적 ≈ 112㎡) • 84㎡ refers to exclusive area (전용면적) • These describe the SAME apartment! The pyeong number is always bigger because it includes common areas. ■ Land Measurement Context • 1 acre ≈ size of a football field (slightly smaller) • 1 hectare = 100m × 100m = 10,000㎡ ≈ 3,025평 • Korean farmland is often measured in 마지기 (about 150-300평 depending on region) ■ International Comparison • Average Seoul apartment: 25평 (84㎡ / 904 sq ft) • Average Tokyo apartment: 65㎡ (19.7평 / 700 sq ft) • Average US home: 2,300 sq ft (214㎡ / 64.7평) ## Frequently Asked Questions ### Q. Why does Korea still use pyeong for real estate? Although Korea officially adopted the metric system and banned the use of pyeong in real estate advertisements since 2007, it remains deeply ingrained in Korean culture. Most Koreans instinctively understand apartment sizes in pyeong — saying '30-pyeong apartment' immediately conveys the size, while '99㎡' requires mental conversion. Real estate agents, apartment complexes, and everyday conversations still predominantly use pyeong. Official documents and new construction ads must use ㎡, but pyeong is often included in parentheses or used informally. ### Q. What's the difference between exclusive area (전용면적) and supply area (공급면적)? Exclusive area (전용면적) is the actual private living space inside your apartment unit, measured in ㎡. Supply area (공급면적) includes exclusive area plus your share of common areas like hallways, elevator lobbies, and stairwells. For example, an apartment listed as '전용 84㎡ / 공급 112㎡' means 84㎡ of private space with 28㎡ of shared common areas. The traditional pyeong measurement usually refers to supply area, which is why a '34-pyeong' apartment has only about 84㎡ of living space. ### Q. How big is an acre in practical terms? One acre equals 4,046.86㎡, approximately 1,224 pyeong, or 43,560 square feet. Visually, one acre is roughly 90% the size of an American football field (including end zones), or about 16 tennis courts. It's equivalent to approximately 69.57m × 58.17m (or roughly 70m × 58m). In Korean context, 1 acre is about 1,224평, which is much larger than even the largest apartments. Acres are primarily used for farmland, large estates, and development sites. A typical suburban house lot in the US is 0.2-0.5 acres. ### Q. How do I convert square feet to pyeong? To convert square feet to pyeong, divide by 35.58 (since 1 pyeong = 35.58 sq ft). Alternatively, multiply square feet by 0.02812. For example, a 1,000 sq ft apartment = 1,000 ÷ 35.58 = 28.11 pyeong. To convert square feet to square meters first: divide sq ft by 10.764. Then convert ㎡ to pyeong by dividing by 3.3058. This two-step approach: 1,000 sq ft ÷ 10.764 = 92.9㎡ ÷ 3.3058 = 28.1평. Either method gives the same result. ### Q. What is a hectare and how does it relate to other units? A hectare (ha) is a metric unit of area equal to 10,000 square meters (100m × 100m). It equals approximately 3,025 pyeong or 2.471 acres. Hectares are commonly used for measuring large land areas like parks, farms, and forests in metric countries. Korea uses hectares for agricultural land and urban planning. For comparison: Seoul's total area is about 605 km² = 60,500 hectares. Yeouido island is about 290 hectares (877,250평). One soccer field is about 0.7 hectares.