What is the definition of a hectare in square meters?
A hectare equals 10,000 square meters and represents a square with sides measuring exactly 100 meters. This geometric shape defines the unit used globally to measure land area.
Questions about Hectare
Short answers, pulled from the story.
When was the legal basis for the metric system including the hectare established?
The French Revolutionary government established the legal basis for the metric system on the 7th of April 1795. The law of 18 Germinal Year III defined five distinct units of measure that included the hectare as 100 combined ares.
Which countries use hectares instead of acres for land measurement?
European Union countries legally mandate hectares for land ownership and planning purposes while South Africa, New Zealand, Australia, Canada, and the United Kingdom rely on this unit for forestry and town planning. The United States and Myanmar retain the acre instead of adopting the hectare for surface area measurement.
How do legacy regional measures like the decare relate to the modern hectare?
Historical regional land measures have been redefined to match the modern hectare exactly such as the Greek old measure which equals ten ares or 1000 square meters. Israel, Palestine, Jordan, Lebanon, Syria, and Turkey use similar legacy names that now correspond to one decare.
What are the smaller sub-units derived from the base unit are?
Metric prefixes attach to the base unit of area known as the are to create sub-units where the centiare equals one square meter and the deciare measures ten square meters. Russian speakers call the are sotka meaning hundred when describing suburban dacha plots.