Type:Number

http://semantic-mediawiki.org/wiki/Type:Number

The datatype number is used for properties that contain any kind of number, integer, decimal, and floating point numbers. It can be positive or negative, with thousand separators, and it can have an optional exponent. For example, 42, -273.15, and 4,297.31 e7 are valid numbers.

It is possible to use units of measurement with number values. They can be specified as arbitrary non-numerical strings after the number. Though Type:Number does not understand units (i.e. it performs no automatic conversion), a unit can be used to distinguish property values with different units to avoid accidental comparison of quantities that have been given in different units. It is also possible to create a datatype that is aware of units; see Custom units.