Area units converter — m², ha, ar, acres, sq ft, sq yd

1 hectare (ha) is exactly 10,000 square metres (m²). It is the standard unit for agricultural and forest land across Europe.

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.

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.

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.

1 m² ≈ 10.7639 sq ft. This conversion helps when comparing apartment sizes described in English-language listings or when buying property abroad.

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.

1 km² = 100 hectares = 10,000 ares = 1,000,000 m². Square kilometres describe areas of countries, regions and national parks.

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.

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.

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.