pmutt.constants.convert_unit

pmutt.constants.convert_unit(num=None, initial=None, final=None)

Converts units between two unit sets

Parameters:

• num (float, optional) – Number to convert. I not specified, will return the appropriate conversion factor.

• initial (str) – Units that num is currently in

• final (str) – Units you would like num to be in

Returns:

conversion_num – num in the appropriate units

Return type:

float

Raises:

ValueError – If unit types are not consistent or not supported

Supported Units

Energy

Unit	Description
J	Joules
kJ	KiloJoules
eV	Electron Volts
cal	Calories
kcal	Kilocalories
L atm	Liter atmospheres
Eh	Hartree
Ha	Hartree

Energy/Amount

Unit	Description
J/mol	Joules per mole
kJ/mol	KiloJoules per mole
cal/mol	Calories per mole
kcal/mol	Kilocalories per mole
eV/molecule	Electron volt per molecule
Eh/molecule	Hartree per molecule
Ha/molecule	Hartree per molecule

Time

Unit	Description
ps	Picosecond
ns	Nanosecond
ms	Millisecond
s	Seconds
min	Minutes
hr	Hours
day	Days
yr	Year

Amount

Unit	Description
molecule	Molecules
molec	Molecules
mol	Moles

Temperature

Unit	Description
C	Celcius
K	Kelvin
F	Fahrenheit
R	Rankine

Length

Unit	Description
m	Meter
cm	Centimeter
nm	Nanometer
A	Anstrom
km	Kilometer
inch	Inch
ft	Foot
mile	Mile

Area

Unit	Description
m2	Meters squared
cm2	Centimeters squared
A2	Anstroms squared
km2	Kilometers squared
inch2	Inches squared
ft2	Feet squared

Volume

Unit	Description
m3	Meter cubed
cm3	Centimeter cubed
mL	Milliliters
L	Liters
inch3	Inches cubed
ft3	Feet cubed

Mass

Unit	Description
kg	Kilograms
g	Grams
amu	Atomic mass units
lbs	Pounds

Pressure

Unit	Description
Pa	Pascals
kPa	KiloPascals
MPa	MegaPascals
atm	Atmospheres
bar	Bars
mmHg	Millilmeters of Mercury
psi	Pounds per square inch