Special FPS Units

The base units in the FPS unit system are identical to the SI units with the following exceptions:

Table 3-20: Special Base Units in the FPS Unit System

Base quantity	name	symbol
length	foot	ft
mass	pound	lb
temperature	Fahrenheit	degF

There is one derived unit that differs from the corresponding SI unit:

Table 3-21: Derived FPS Units in COMSOL

Derived quantity	name	symbol
force	poundal	N/A