Area Conversion Calculator
Converts metric, imperial, Chinese, and Japanese units of area
Area Measurement Calculator
Area Unit Converter
Select the unit of measurement that you know and enter its value. The calculator supports metric, imperial, Chinese and Japanese area units.
Area Units - Overview
Metric System
1 m² = 10,000 cm² = 1,000,000 mm²
Hectare
10,000 m²
100 Ares
haAcre
4,046.86 m²
≈ 0.405 ha
acImportant Conversions
- 1 km² = 1,000,000 m² = 100 hectares
- 1 hectare (ha) = 10,000 m²
- 1 are (a) = 100 m²
- 1 acre ≈ 4,047 m²
Metric Area Units
- 1 mm² = 0.000001 m²
- 1 cm² = 0.0001 m²
- 1 m² = base unit
- 1 are = 100 m²
- 1 ha = 10,000 m²
- 1 km² = 1,000,000 m²
Imperial Area Units
- 1 in² (square inch) = 6.4516 cm²
- 1 ft² (square foot) = 0.0929 m²
- 1 yd² (square yard) = 0.8361 m²
- 1 ac (acre) = 4,046.86 m²
- 1 mi² (square mile) = 2.59 km²
Asian Area Units
Chinese:
- 1 Mu (亩) ≈ 666.67 m²
- 1 Qing (顷) = 100 Mu ≈ 6.67 ha
Japanese:
- 1 Tsubo (坪) ≈ 3.306 m²
- 1 Tan (反) = 300 Tsubo ≈ 991.74 m²
- 1 Chō (町) = 10 Tan ≈ 9,917.4 m²
Area Units - Detailed Description
Metric System
The metric system for area units is based on the square meter (m²) as the base unit. Larger units are formed by multiplication with powers of ten.
• 1 m² = 10,000 cm²
• 1 m² = 1,000,000 mm²
• 1 km² = 1,000,000 m²
• 1 ha = 10,000 m² = 100 ares
Hectare and Are
Agricultural measurements:
Hectare (ha): The most common unit for agricultural land.
1 ha = 10,000 m² = 100 m × 100 m
Are (a): Smaller unit for land plots.
1 a = 100 m² = 10 m × 10 m
Imperial System
The imperial system is mainly used in the USA and UK:
- Square Inch (in²): Smallest unit
- Square Foot (ft²): 144 in² = 0.0929 m²
- Square Yard (yd²): 9 ft² = 0.8361 m²
- Acre (ac): 4,840 yd² = 4,046.86 m²
- Square Mile (mi²): 640 ac = 2.59 km²
Asian Measurement Systems
Based on historical measurements:
• 1 Mu (亩) ≈ 666.67 m²
• 1 Qing (顷) = 100 Mu
Japanese System:
• 1 Tsubo (坪) ≈ 3.306 m² (two tatami mats)
• 1 Tan (反) = 300 Tsubo
• 1 Chō (町) = 10 Tan ≈ 1 ha
Practical Application
Examples:
• Football field: approx. 7,140 m² (≈ 0.714 ha)
• Tennis court: approx. 260 m²
• Single-family house lot: 400-800 m²
• Farm: several hectares
Comparison Table
| Unit | Symbol | Equivalent in m² | System |
|---|---|---|---|
| Square meter | m² | 1 | Metric |
| Are | a | 100 | Metric |
| Hectare | ha | 10,000 | Metric |
| Acre | ac | 4,046.86 | Imperial |
| Mu (亩) | - | 666.67 | Chinese |
| Tsubo (坪) | - | 3.306 | Japanese |
|
|