| | Class | Description |
|---|
 | Acre |
Represents an acre, a unit of Area in the English system
equal to 1/640 of a square mile.
|
| Are |
Represents an are, a unit of Area in the
International System equal to 100 square meters.
|
| Atmosphere |
Represents an atmosphere, a unit of Pressure
representing the standard pressure of air at sea level at 14°C.
|
| Bar |
Represents one bar, a unit of
Pressure in the International System
equal to 100 kiloPascals.
|
| Celsius |
Represents a degree Celsius, a unit of Temperature in the International
System.
|
| Cup |
Represents a cup, a unit of Volume in the English system
equal to 1/4 of a Quart.
|
| Day |
Represents a day, a unit of time equal to 24 hours,
and approximately equal to the time
it takes the earth to rotate once on its axis.
|
| DistanceOverTime |
Represents an arbitrary, compound unit of Speed;
for example, a Mile distance per Hour.
|
| Dram |
Represents an avoirdupois dram, equal to 1/16 of a Ounce or
27.344 grains.
|
| Fahrenheit |
Represents a degree Fahrenheit, the reference unit for Temperature in the
English system.
|
| FluidDram |
Represents a fluid dram, equal to 1/8 of a fluid
ounce |
| FluidOunce |
Represents a fluid ounce, a unit of Volume in the English system
equal to 1/128 of a Gallon.
|
| Foot |
Represents a foot, a unit of Length in the English System.
|
| FootCubic |
Represents a cubic foot, a unit of Volume in the English system
equal one Foot cubed.
|
| FootSquare |
Represents a square foot, a unit of Area in the English system.
|
| ForceOverArea |
Represents an arbitrary, compound unit of Pressure;
for example, a pound force per
square inch.
|
| Gallon |
Represents a gallon, a unit of Volume in the English system.
|
| Gram |
Represents a gram, one-thousandth of the reference unit for
Mass in the International System.
|
| Hectare |
Represents a hectare, a unit of Area in the
International System equal to 100 ares or 10,000 square
meters.
|
| Hour |
Represents an hour, a unit of Time equal
to 60 minutes or 3600 seconds.
|
| Inch |
Represents an inch, a unit of Length in the English System.
|
| InchCubic |
Represents a cubic inch, a unit of Volume in the English system
equal one Inch cubed.
|
| InchHg |
Represents one inch of mercury, a unit of
Pressure in the English system
equal to the pressure required to raise elemental mercury
one Inch in a vacuum tube at zero degrees Celsius.
|
| InchSquare |
Represents a square inch, a unit of Area in the English system
equal to 1/144 of a square foot.
|
| Kelvin |
Represents a Kelvin, the reference unit for Temperature in the International
System.
|
| Knot |
Represents a knot, or nautical mile per
hour, a unit of Speed in the English System.
|
| Liter |
Represents a liter, the reference unit for
Volume in the International System.
|
| Meter |
Represents a meter, the reference unit for Length in the International
System.
|
| MeterCubic |
Represents a cubic meter, a unit of Volume in the International System
equal to the product of three Meter lengths.
|
| MeterHg |
Represents one meter of mercury, a unit of
Pressure in the International System
equal to the pressure required to raise elemental mercury
one Meter in a vacuum tube at zero degrees Celsius.
|
| MeterSquare |
Represents a square meter, the reference unit for
Area in the International System.
|
| Mile |
Represents a mile, a unit of Length in the English System.
|
| MileNautical |
Represents a nautical mile, a unit of Length
in the English System approximately equal to 6,072 feet.
|
| MilePerHour |
Represents one statute mile per
hour, a unit of Speed in the English System.
|
| MileSquare |
Represents a square mile, a unit of Area in the English system
equal to 27,878,400 square feet.
|
| Minute |
Represents a minute, a unit of Time
equal to 60 seconds.
|
| Ounce |
Represents an avoirdupois ounce, equal to 1/16 of a Pound, which
is the basic unit of Mass in the English System.
|
| OunceTroy |
Represents a Troy ounce, 1/12 of a Troy pound, a unit of Mass
used in specialized applications.
|
| Pascal |
Represents a Pascal, the reference unit for
Pressure in the International System
equal to the force of 1,000 Grams over
one MeterSquare per second squared.
|
| Pint |
Represents a pint, a unit of Volume in the English system
equal to 1/8 of a Gallon.
|
| Pound |
Represents an avoirdupois pound, the basic unit of Mass in the
English System.
|
| Quart |
Represents a quart, a unit of Volume in the English system
equal to 1/4 of a Gallon.
|
| Second |
Represents a second, the reference unit for
Time in the International
System.
|
| Ton |
Represents an short ton, a unit of Mass in the English System
equal to 2,000 pounds.
|
| Tonne |
Represents a metric ton, equal to 1,000 kilograms,
which are the basic unit of Mass in the International System.
|
| Week |
Represents a week, a unit of time equal to 7 days.
|
| Yard |
Represents a yard, a unit of Length in the English System
equal to 3 feet.
|
| YardSquare |
Represents a square yard, a unit of Area in the English system
equal to 9 square feet.
|
Classes