Area Unit Conversion Tool
Whether you're an architect, land surveyor, student, or someone renovating a home, planning a garden, or working on international project documentation, converting between area units can be frustrating. Mixing metric and imperial systems, dealing with numerous units, and remembering complex conversion factors—don’t worry! Our comprehensive Area Unit Conversion Tool supports instant, high-precision conversion among the following 10 commonly used area units:
- Square millimeters (mm²)
- Square centimeters (cm²)
- Square meters (m²)
- Hectares (ha)
- Square kilometers (km²)
- Square inches (in²)
- Square feet (ft²)
- Square yards (yd²)
- Acres (ac)
- Square miles (mi²)
Just enter a value, select the source and target units, and get accurate results in seconds! Say goodbye to lookup tables, manual calculations, and unit confusion.
🔁 Core Area Conversion Formulas
Metric Units (based on square meter)
| Conversion | Formula |
|---|---|
| mm² → cm² | cm² = mm² ÷ 100 |
| cm² → m² | m² = cm² ÷ 10,000 |
| m² → ha | ha = m² ÷ 10,000 |
| ha → km² | km² = ha ÷ 100 |
| m² → km² | km² = m² ÷ 1,000,000 |
Imperial Units
| Conversion | Formula |
|---|---|
| in² → ft² | ft² = in² ÷ 144 |
| ft² → yd² | yd² = ft² ÷ 9 |
| ac → mi² | mi² = ac ÷ 640 |
| yd² → ac | ac = yd² ÷ 4,840 |
Metric ↔ Imperial Key Reference Values
| Base Relationship | Exact Value |
|---|---|
| 1 in² | 6.4516 cm² |
| 1 ft² | 0.092903 m² |
| 1 yd² | 0.836127 m² |
| 1 ac | 4,046.85642 m² |
| 1 mi² | 2.58998811 km² |
💡 Did You Know?
- 1 hectare (ha) = 10,000 m², roughly the size of a standard football field.
- 1 acre (ac) ≈ 0.4047 hectares, commonly used in the United States and the United Kingdom for land measurement.
📐 Common Area Unit Conversion Reference Table
| mm² | cm² | m² | ha | km² | in² | ft² | yd² | ac | mi² |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 0.01 | 0.000001 | 1e-10 | 1e-12 | 0.00155 | 1.076e-5 | 1.196e-6 | 2.471e-10 | 3.861e-13 |
| 10,000 | 1 | 0.0001 | 1e-8 | 1e-10 | 1.55 | 0.001076 | 1.196e-4 | 2.471e-8 | 3.861e-11 |
| 1,000,000 | 10,000 | 1 | 0.0001 | 1e-6 | 1,550 | 10.764 | 1.196 | 0.0002471 | 3.861e-7 |
| 100,000,000 | 1,000,000 | 100 | 0.01 | 0.0001 | 155,000 | 1,076 | 119.6 | 0.02471 | 3.861e-5 |
| 10,000,000,000 | 100,000,000 | 10,000 | 1 | 0.01 | 15,500,000 | 107,639 | 11,960 | 2.471 | 0.003861 |
| — | — | 4,046.86 | 0.4047 | 0.004047 | 6,272,640 | 43,560 | 4,840 | 1 | 0.0015625 |
| — | — | 2,589,988 | 258.999 | 2.58999 | 4.014e9 | 27,878,400 | 3,097,600 | 640 | 1 |
✅ Note: The last two rows represent the equivalent values for 1 acre (ac) and 1 square mile (mi²), respectively.
✨ Tool Advantages
- Full coverage of 10 units: From tiny mm² to vast mi²—everything in one place.
- High-precision engine: Uses internationally recognized conversion factors with sufficient significant digits.
- Intuitive interface: Choose units from dropdown menus; real-time calculation—no need to memorize formulas.
- Completely free & ad-free: Focused on user experience—no registration required.
- Cross-platform compatibility: Works smoothly on desktops, smartphones, and tablets.
🌐 Try It Now!
📐 Make area conversion simple, fast, and error-free!
Whether you're tackling homework, managing construction projects, evaluating real estate, planning agricultural land, or organizing travel itineraries—this tool is your essential companion.
🌍 Give it a try today—accurate conversions at your fingertips!