Area units converter — m², ha, ar, acres, sq ft, sq yd
This area converter instantly converts any value to all popular area units at once: square metres (m²), square kilometres (km²), hectares (ha), ares (a), acres, square feet (sq ft) and square yards (sq yd). Useful when comparing land plots, apartments and properties described in different measurement systems.
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How we calculate area units
All values are converted through the common base unit — square metre (m²). Conversion factors: 1 km² = 1,000,000 m², 1 ha = 10,000 m², 1 are = 100 m², 1 acre = 4046.86 m², 1 sq ft = 0.0929 m², 1 sq yd = 0.8361 m².
Example calculation
1 hectare (ha) = 10,000 m² = 100 ares = 2.471 acres = 107,639 sq ft = 0.01 km². A plot of 850 m² equals 8.5 ares or about 0.085 ha.
Frequently asked questions
How many square metres are in 1 hectare?
1 hectare (ha) is exactly 10,000 square metres (m²). It is the standard unit for agricultural and forest land across Europe.
What is an are and how many square metres is it?
1 are (a) = 100 square metres (m²). It is a land-area unit historically used in Poland — 1 hectare = 100 ares. Land-plot areas in notarial deeds are often expressed in ares.
How many square metres are in 1 acre?
1 acre ≈ 4046.86 m², which is just over 40 ares or 0.4047 ha. The acre is used mainly in the USA and the UK. When buying property abroad, an acres-to-hectares converter is often essential.
How do I convert square feet to square metres?
1 sq ft = 0.0929 m². Multiply square feet by 0.0929. Example: an apartment of 1000 sq ft ≈ 92.9 m². Square feet are widely used in US, Canadian and British property listings.
How many square feet are in 1 square metre?
1 m² ≈ 10.7639 sq ft. This conversion helps when comparing apartment sizes described in English-language listings or when buying property abroad.
What is a square yard (sq yd) and how do I convert it?
1 sq yd = 0.8361 m² = 9 sq ft. Square yards are used mainly in the USA for carpets, flooring and lawns. Multiply square yards by 0.8361 to get square metres.
How do I convert km² to hectares?
1 km² = 100 hectares = 10,000 ares = 1,000,000 m². Square kilometres describe areas of countries, regions and national parks.
How large is a typical building plot in Poland?
A typical Polish building plot ranges from 0.05 ha (5 ares, 500 m²) to 0.3 ha (30 ares, 3000 m²). Agricultural plots are generally much larger — often several hectares.
How do I calculate a plot area in ares if I know it in square metres?
Divide square metres by 100 to get ares. Example: a 850 m² plot = 8.5 ares. In Polish notarial deeds the format is usually ha–a–m², e.g. 0 ha 08 a 50 m².
Which area units are officially used in Poland?
The official SI units in Poland are m² and km². Permitted non-SI units are the are (100 m²) and hectare (10,000 m²), used in land transactions. Square feet, square yards and acres have no legal status in Poland but are well known for international property dealings.
Results are indicative. The converter uses standard metric and imperial conversion factors. For real estate transactions always verify area in official documents.