(Any unit of force) divided by (any unit of area) is a perfectly good unit of pressure.
Some that are widely-used include
-- dynes per square centimeter
-- pounds per square inch
-- newtons per square meter (pascals)
The measurement unit depends on the characteristic that is being measured.
Barometric pressure is usually measured in inches of mercury, millibars (mb), or hectoPascals (hP).
kilometers
It is measured in grams.
The pascal (Pa) is the standard unit of pressure.
hg is a measurement of Vacuum measured in Inches of Murcury.
Decibel is a measurement of loudness.
Microns, this is measured with a micrometer
measurement of volume.
It can be measured in any unit of measurement. *Edit: Remember that volume can be in any unit but it has to be cubed.
Probably the pound.
SI unit or Newton