Temperature Conversion Equations
°F = (1.8 x °C) +32or
°F = (9/5 x °C) +32
°C = (°F-32) x 0.555 or=(°F-32) x 5/9
°Kelvin = °C + 273.2
°Rankin = °F + 459.67
AREA CONVERSION DEFINITIONS
Acre
The acre is a unit of area in the imperial and U.S. customary systems. The acre is often used in measurements for areas of land and its international symbol is ac. You can find out more about the acre in the article, how big is an acre?
Are
The Are is a unit of area equal to 100 square metres (10m x 10m). It is commonly used for measuring land area. Although the Are is now considered to be outside of the modern International System (SI), it is still used to measure real estate in some European countries. Its international symbol is a.
Hectare
The hectare is a unit of area equal to 10,000 square metres (107,639 sq ft), or one square hectometre (100m x 100m), and is commonly used for measuring land area. It is most commonly used in the surveying profession for day to day legal documents such as land deeds, mortgage surveys, town planning, environmental protection, and other necessary property considerations under the law
http://septic.umn.edu/prod/groups/cfans/@pub/@cfans/@ostp/documents/asset/cfans_asset_126400.pdf
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