Author: ToolsHeaven Team

Square Mile (US Survey)

A square mile US survey is a special American area unit used in land maps and property records, very close in size to the regular square mile but not exactly the same.

Barn

Learn what a barn unit is in physics, how small it is, and why scientists use it to measure area.

Are

An are is a metric unit for measuring land area, useful for understanding the size of gardens, fields, and small plots of land.

Square Decimeter

A square decimeter is a metric unit for measuring area, useful for surfaces smaller than a square meter but larger than a square centimeter.

Square Dekameter

A square dekameter is a metric unit for measuring area that is useful for describing land size, fields, and medium sized spaces.

Square Hectometer

A square hectometer is a metric unit used to measure large areas of land, equal to one hectare or ten thousand square meters.

Triple point of water

The triple point of water is a special temperature and pressure where ice, liquid water and water vapor can all exist together in perfect balance.

Reaumur [°r]

Reaumur is an old temperature scale that uses degrees Reaumur to show how hot or cold something is, mostly known today from history and special science uses.

Rankine [°R]

Learn what the Rankine degree is, how it measures temperature from absolute zero, and how to convert it to Celsius, Fahrenheit, and Kelvin.

Kos

Kos is an old South Asian unit of distance. Learn its meaning, size in kilometers, history, and simple conversions.