| Unit | Equals | Description |
|---|---|---|
| Metric Units | ||
| 1 km² | 1,000,000 m² | Square Kilometer/Square Kilometer |
| 1 ha | 10,000 m² | Hectare（hectare） |
| 1 a | 100 m² | Mu（are） |
| 1 m² | 10,000 cm² | Square Meter（Base Unit） |
| 1 cm² | 100 mm² | Square Centimeter |
| Imperial Units | ||
| 1 mi² | 2.59 km² = 640 acre | Square Mile |
| 1 acre | 4046.86 m² ≈ 43,560 ft² | Acre |
| 1 yd² | 0.8361 m² = 9 ft² | Square Yard |
| 1 ft² | 929.03 cm² = 144 in² | Square Foot |
| 1 in² | 6.4516 cm² | Square Inch |
| Traditional Chinese Units（Market System） | ||
| 1 Qing | 100 Mu ≈ 6.667 ha | Traditional Large Area Units |
| 1 Mu | 666.67 m² ≈ 0.0667 ha | Common Land Area Units |
| 1 Square Li | 250,000 m² | Square Li（1Li (Chinese mile)=500Meter） |
| 1 Square Zhang | 11.11 m² | Square Zhang（1Zhang (Chinese unit of length)≈3.33Meter） |
| 1 Square Chi | 0.1111 m² | Square Chi（1Chi (Chinese foot)≈0.333Meter） |
| 1 Square Cun | 0.001111 m² | Square Cun（1Cun (Chinese inch)≈0.0333Meter） |
| Common Comparisons | ||
| 1 Hectare | ≈ 15 Mu | Metric and Chinese Units |
| 1 Acre | ≈ 6.07 Mu | Imperial and Chinese Units |
| 1 Square Kilometer | ≈ 1500 Mu | Large Area Conversion |
| Standard Soccer Field | ≈ 7,140 m² ≈ 10.7 Mu | Reference Area |
| Standard Basketball Court | ≈ 420 m² | Reference Area |
| Tennis Court | ≈ 260 m² | Reference Area |
| Category | Square Meter (m²) | Mu | Hectare (ha) |
|---|---|---|---|
| Residential Buildings | |||
| Single Room | 15-20 | 0.022-0.030 | 0.0015-0.0020 |
| One-Bedroom Apartment | 40-60 | 0.06-0.09 | 0.004-0.006 |
| Two-Bedroom Apartment | 70-90 | 0.105-0.135 | 0.007-0.009 |
| Three-Bedroom Apartment | 90-140 | 0.135-0.210 | 0.009-0.014 |
| Villa（With Garden） | 300-1000 | 0.45-1.5 | 0.03-0.1 |
| Sports Facilities | |||
| Standard Soccer Field | 7,140 | 10.71 | 0.714 |
| Standard Basketball Court | 420 | 0.63 | 0.042 |
| Tennis Court | 260 | 0.39 | 0.026 |
| Badminton Court | 81 | 0.12 | 0.0081 |
| Standard Swimming Pool（50m） | 1,250 | 1.875 | 0.125 |
| Urban Facilities | |||
| Parking Space（Standard） | 12-15 | 0.018-0.022 | 0.0012-0.0015 |
| Bus Stop | 30-50 | 0.045-0.075 | 0.003-0.005 |
| Small Supermarket | 500-1,000 | 0.75-1.5 | 0.05-0.1 |
| Large Shopping Mall | 50,000-200,000 | 75-300 | 5-20 |
| Natural Geography | |||
| Tiananmen Square | 440,000 | 660 | 44 |
| The Forbidden City | 720,000 | 1,080 | 72 |
| Central Park, New York | 3,410,000 | 5,115 | 341 |
| Singapore Territory | 728,600,000 | 1,092,900 | 72,860 |
| Hong Kong Special Administrative Region | 1,106,000,000 | 1,659,000 | 110,600 |
Square Meter (m²)：The Basic Unit of Area in the International System of Units，Has a Side Length of1Square Meter Area。Real Estate、The Most Common Units in Construction Engineering。
Hectare (ha)：Metric Area Units，1Hectare=10,000Square Meter，Equivalent to a Side Length of100Square Meter。Commonly Used in Agriculture、Forestry、Land Planning and Related Fields。
Mu：Traditional Chinese Land Area Unit，1Mu≈666.67Square Meter。In Agriculture、Widely Used in Land Transactions。15Mu is Approximately Equal to1Hectare。
Acre (acre)：Imperial Units，1Acre≈4046.86Square Meter≈6.07Mu。In the United States、Used in land surveying in countries like the UK。
Square Foot (ft²)：Imperial Units，1Square Foot≈0.0929Square Meter。Commonly used in US real estate，Equals the side length1Square footage。
Usage tips：This tool supports real-time conversion，All common unit equivalents will be displayed automatically after input。Applicable to real estate、Land transactions、Architectural design、Agricultural planning and similar scenarios。Note traditional Chinese units"Mu"Conversion factor is666.67Square Meter。