Convert Ares (a) to Square Meters (m²)

1 are equals 100 square meters.

Formula: m² = a × 100

Are to Square Meter Converter

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How to Convert Are to Square Meter

1 are = 100 square meters

Square Meter = Are × 100

Example: 1 a × 100 = 100 m²

Reverse Conversion

To convert square meters back to ares:

  • Remember, 1 square meter equals 0.01 ares.
  • To convert 100 m² to a, multiply 100 x 0.01, resulting in 1 a.

Common Are to Square Meter Conversions

Are to Square Meter (Part 1)
Are to Square Meter common conversions part 1
Are Square Meter Actions
1 are 100 square meters
5 ares 500 square meters
10 ares 1000 square meters
25 ares 2500 square meters
Are to Square Meter (Part 2)
Are to Square Meter common conversions part 2
Are Square Meter Actions
50 ares 5000 square meters
100 ares 10000 square meters
500 ares 50000 square meters
1000 ares 100000 square meters

Ares to square meters Conversion Table

Reference table with common ares to square meters conversions. All values calculated with high precision.

Ares to Square Meters Table
0.0001 to 12

Ares Square meters Actions
0.0001 a 0.01 m²
0.00025 a 0.025 m²
0.0005 a 0.05 m²
0.001 a 0.1 m²
0.0025 a 14 m²
0.005 a 12 m²
0.01 a 1 m²
0.025 a 2 12 m²
0.05 a 5 m²
0.1 a 10 m²
14 a 25 m²
12 a 50 m²

Ares to Square Meters Table
1 to 100000

Ares Square meters Actions
1 a 100 m²
2 12 a 250 m²
5 a 500 m²
10 a 1000 m²
25 a 2500 m²
50 a 5000 m²
100 a 10000 m²
250 a 25000 m²
500 a 50000 m²
1000 a 100000 m²
2500 a 250000 m²
5000 a 500000 m²
10000 a 1000000 m²
25000 a 2500000 m²
50000 a 5000000 m²
100000 a 10000000 m²

Square Meters to Ares Table
0.01 to 50

Square meters Ares Actions
0.01 m² 0.0001 a
0.025 m² 0.00025 a
0.05 m² 0.0005 a
0.1 m² 0.001 a
14 m² 0.0025 a
12 m² 0.005 a
1 m² 0.01 a
2 12 m² 0.025 a
5 m² 0.05 a
10 m² 0.1 a
25 m² 14 a
50 m² 12 a

Square Meters to Ares Table
100 to 10000000

Square meters Ares Actions
100 m² 1 a
250 m² 2 12 a
500 m² 5 a
1000 m² 10 a
2500 m² 25 a
5000 m² 50 a
10000 m² 100 a
25000 m² 250 a
50000 m² 500 a
100000 m² 1000 a
250000 m² 2500 a
500000 m² 5000 a
1000000 m² 10000 a
2500000 m² 25000 a
5000000 m² 50000 a
10000000 m² 100000 a

Definition of Are

Definition

a — The are is a metric unit of area equal to exactly 100 square meters. It corresponds to the area of a square with sides of 10 meters.

The are was introduced with the metric system in France and is accepted for use with the SI, though it is not an SI unit itself. It is primarily used in land measurement in parts of Europe and in legal or cadastral contexts.

The symbol a is the internationally recognized abbreviation for the are, as documented by the BIPM. Its decimal multiple, the hectare (ha), is far more common in everyday use.

Exact factor
1 a = 100 m²
Examples
  • 3 a = 300 m²
  • 11 a = 11,840.3 ft²
  • 0.93 a = 1,001.04 ft²

Definition of Square Meter

Definition

m² — The square meter is the SI-derived unit of area. It is defined as the area of a square whose sides each measure exactly 1 meter, the SI base unit of length.

The square meter is the fundamental area unit in science, engineering, and international commerce. It is used worldwide for expressing room sizes, land parcels, building footprints, and material quantities.

As an SI-derived unit, the square meter forms the basis from which all other metric area units are defined: 1 cm² = 10⁻⁴ m², 1 a = 100 m², 1 ha = 10⁴ m², and 1 km² = 10⁶ m².

Exact factor
1 m² = 1 m²
Examples
  • 170 m² = 1,829.86 ft²
  • 934 m² = 10,053.49 ft²
  • 0.06 m² = 0.0006 a

About the Square Meter

Facts & Uses

  • SI derived unit of area: 1 m² = the area of a square 1 meter on each side. Foundation for all metric area calculations.
  • Standard for real estate outside the US/UK (apartment sizes, land plots), flooring (m² of tile/laminate), and construction (concrete pours, paint coverage).
  • Used in solar panels (kW per m² rating), HVAC (BTU per m² heating load), and fabric (g/m² fabric weight, GSM).
  • Subdivisions: cm² (microscopy, electronics), mm² (precision manufacturing); multiples: km² (geography), hectare (agriculture).

Curiosities

  • The square meter is one of the few SI derived units that doesn't have a special name — it's just "meter squared", sometimes informally called "centiare" (1 ca = 1 m²).
  • Solar irradiance at Earth's surface is about 1000 W/m² on a clear day at solar noon — the basis for all photovoltaic and solar thermal calculations.
  • The average city has ~10-30 m² of street pavement per resident; a Manhattan apartment averages 50-90 m²; a US suburban house typically 150-250 m².
  • Approximate equivalents: 1 m² ≈ 10.764 ft² ≈ 1.196 yd² ≈ 1550 in².

Sources

Frequently Asked Questions

How many square meters are in one are?

One are equals 100 square meters. To convert, multiply the are value by 100. For the reverse, divide the square meter value by 100 (or multiply by 0.01).

What is 10 ares in square meters?

10 ares = 1000 square meters. This is one of the most commonly searched conversions for this pair.

Is the are-to-square meter conversion exact?

Yes. The factor 100 is exact by international definition, not an approximation. Any imprecision comes only from the original measurement, not the conversion.

Looking for the reverse? Convert Square Meter to Are

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Conversion factors verified against NIST, BIPM, ISO 80000-3 Derived from SI base units (m², BIPM). Last reviewed: March 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.