Convert Are to Square Hectometer
Convert ares to square hectometers instantly. 1 are = 0.01 square hectometer — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Square Hectometer to Are converter for the reverse conversion.
Units explained
Are
An are is a metric unit of area equal to 100 square meters. It is used in some European countries for land measurement, especially for smaller plots like vineyards and gardens.
Introduced as part of the French metric system in 1795. The name comes from the Latin 'area' meaning surface or open ground.
Ares are still used in some European countries (especially Switzerland and France) for small-plot land measurement. In Switzerland, an are is a common unit for vineyard size. Most modern contexts prefer square meters or hectares.
Defined in 1795 in France as part of the original metric system.
Square Hectometer
A square hectometer is a metric unit of area equal to 10,000 m². It is identical in value to the hectare.
Derived by squaring the hectometer (100 m). The hecto- prefix comes from the Greek 'hekaton' (hundred).
Functionally equivalent to hectares. In contexts where the prefix system is preferred over the special name 'hectare', hm² may be used.
Hectometer has been part of the metric system since 1795.
Are to Square Hectometer conversion formula
The relationship between ares and square hectometers:
To convert ares to square hectometers, multiply the value in ares by 0.01. To reverse, multiply square hectometers by 100.
How to use this converter
Type a value into the calculator. The result in square hectometers updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Square Hectometer to Are converter for the reverse direction.
Step-by-step: convert ares to square hectometers
- Write down the value in ares (a).
- Multiply that value by the factor 0.01.
- The product is the equivalent value in square hectometers (hm²).
- To reverse, multiply the square hectometer value by 100.
Worked examples
Example 1 — Convert 1 a to hm²:
1 × 0.01 = 0.01 hm²
Example 2 — Convert 100 a to hm²:
100 × 0.01 = 1 hm²
Are to Square Hectometer conversion table
Standard reference values for converting ares to square hectometers:
| Are [a] | Square Hectometer [hm²] |
|---|---|
| 0.01 | 0.0001 |
| 0.1 | 0.001 |
| 1 | 0.01 |
| 2 | 0.02 |
| 3 | 0.03 |
| 4 | 0.04 |
| 5 | 0.05 |
| 10 | 0.1 |
| 20 | 0.2 |
| 30 | 0.3 |
| 40 | 0.4 |
| 50 | 0.5 |
| 100 | 1 |
| 500 | 5 |
| 1000 | 10 |
Frequently asked questions
How many square hectometers is 1 are?
How do I convert ares to square hectometers?
How do I convert square hectometers back to ares?
How many square hectometers is 100 ares?
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Sources & references
Conversion factor (1 a = 0.01 hm²) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.