What is square metre?
The square metre is the SI unit of area. It is widely used in real estate, construction, interior design, and land measurement across countries that use the metric system.
Real-world uses
Square metres are the global standard for floor space in real estate listings, construction blueprints, and land surveys outside the US. Solar panel output is rated per square metre, and rental prices in most countries are quoted per m².
History
The square metre is a derived SI unit that follows naturally from the metre. It became the standard area unit as the metric system spread globally. Real estate markets worldwide adopted it as metrication displaced local units like the tsubo (Japan) and pyeong (Korea).
Common mistakes
Confusing linear metres with square metres—a room that is 3 m × 4 m is 12 m², not 7 m. Also, forgetting that when scaling dimensions by a factor, area scales by the square of that factor.
What is hectare?
A hectare is a metric unit of area equal to 10,000 square metres. It is the standard unit for measuring agricultural land, forest areas, and large parcels of real estate in metric countries.
Real-world uses
Hectares are the standard unit for agricultural land measurement, forestry management, and urban planning worldwide. Wine regions report vineyard sizes in hectares, and environmental reports quantify habitat loss in hectares. One hectare is roughly the size of two American football fields.
History
The hectare was introduced during the French Revolution as part of the metric system, originally called a "hecto-are" (100 ares). Though not an official SI unit, it is accepted for use with SI and remains the predominant land area unit in global agriculture.
Common mistakes
Confusing hectares with acres—1 hectare is about 2.47 acres, not 1-to-1. Also, some people confuse "hectare" with "hectometre," but a hectare is 10,000 m² (100 m × 100 m), a unit of area, not length.
When is this conversion used?
Converting square metre to hectare is useful in the area domain when comparing values across different measurement standards or applying formulas that require a specific unit.
Worked examples
1 square metre = 0.0001 hectare
1 hectare = 10,000 square metre
How to convert square metre to hectare
To convert square metre to hectare, multiply the value by 0.0001.
To convert hectare back to square metre, multiply by 10,000.
Measurement standards
The square metre is the SI derived unit of area. The hectare (10,000 m²) is accepted for use with the SI by the BIPM, particularly for land measurement, though it is not an SI unit itself.
Did you know?
Vatican City, the world's smallest independent state, covers just 0.44 km² (about 109 acres) — smaller than many golf courses. By contrast, Russia spans over 17.1 million km², nearly 39 million times larger.
Quick reference: square metre to hectare
| square metre | hectare |
|---|---|
| 0.1 | 0.00001 |
| 0.5 | 0.00005 |
| 1 | 0.0001 |
| 2 | 0.0002 |
| 5 | 0.0005 |
| 10 | 0.001 |
| 25 | 0.0025 |
| 50 | 0.005 |
| 100 | 0.01 |
| 250 | 0.025 |
| 500 | 0.05 |
| 1,000 | 0.1 |
Common values
| square metre | hectare | |
|---|---|---|
| A4 paper | 0.062 square metre | 0.0000062 hectare |
| Parking space | 12.5 square metre | 0.00125 hectare |
| Tennis court | 260.87 square metre | 0.026087 hectare |
| Football field (soccer) | 7,140 square metre | 0.714 hectare |
| Central Park, NYC | 3,410,000 square metre | 341 hectare |
Available Area units
More square metre conversions
- Convert square metre to square kilometre
- Convert square metre to square foot
- Convert square metre to square mile
- Convert square metre to acre
- Convert square metre to hectare
- Convert square metre to square centimetre
- Convert square metre to square inch
- Convert square metre to square yard
- Convert square metre to are