Supported Units
Use dozens of different units natively in CalcTree parameters.
CalcTree supports a variety of units across different physical quantities. This page provides a reference list of all available units, their definitions, and any aliases they may have.
acre
1 acre
Surface area
-
afd
1 (acre * ft) / day
Volume flow rate
-
Ah
A * hr
Electric charge
-
angstrom
1 angstrom
Length
-
arcmin
1 arcminute
Angles
-
arcsec
1 arcsecond
Angles
-
AU
149597870700 m
Length
-
bar
1 bar
Pressure
-
beerbarrel
1 beer barrel
Liquid volume
-
bits
1 bit
Binary
-
bpd
1 oilbarrel / day
Volume flow rate
BPD
bph
1 oilbarrel / hr
Volume flow rate
BPH
B
1 byte
Binary
-
BTU
1 BTU
Energy
-
candela
1 candela
Luminous intensity
cd
cc
1 cc
Volume
-
chain
1 ch
Length
-
ch
1 chain
Length
-
century
100 years
Time
centuries
cf
1 cuft
Volume
-
cfm
1 cuft / minute
Volume flow rate
-
cfs
1 cuft / s
Volume flow rate
-
ch
1 chain
Length
-
cmH2O
1 cmH2O
Pressure
-
cps
1 cm / s
Velocity
-
cp
1 cup
Liquid volume
-
cttable
function (a: string, b: MathCollection)
-
-
cuft
1 cuft
Volume
-
cuin
1 cuin
Volume
-
cuyd
1 cuyd
Volume
-
cycle
1 cycle
Angles
-
day
1 day
Time
days
decade
10 years
Time
decades
deg
1 degree
Angles
-
degC
1 degree Celsius
Temperature
-
degF
1 degree Fahrenheit
Temperature
-
degR
1 degree Rankine
Temperature
-
dram
1 dr
Mass
dr
drop
1 drop
Liquid volume
gtt
dpm
1 deg / minute
Angular velocity
-
dyn
1 dyne
Force
-
electronvolt
1 eV
Energy
-
eV
1 electronvolt
Energy
-
erg
1 erg
Energy
-
F
1 farad
Electricity and magnetism
-
fldram
1 fluiddram
Liquid volume
-
floz
1 fluidounce
Liquid volume
-
foot
1 ft
Length
ft
fps
1 ft / s
Velocity
-
gallon
1 gal
Volume
-
gal
1 gallon
Volume
-
gill
1 gi
Liquid volume
-
gi
1 gill
Liquid volume
-
gph
1 gal / hr
Volume flow rate
GPH
gpm
1 gal / minute
Volume flow rate
GPM
gps
1 gal / s
Volume flow rate
GPS
gram
1 g
Mass
g
grad
1 gradian
Angles
-
gr
1 grain
Mass
-
gtt
1 drop
Liquid volume
-
hectare
1 hectare
Surface area
ha
ha
1 hectare
Surface area
-
henry
1 H
Electricity and magnetism
-
H
1 henry
Electricity and magnetism
-
hogshead
1 hogshead
Liquid volume
-
hour
1 hr
Time
hrs
hp
1 horsepower
Power
-
Hz
1 hertz
Frequency
-
in
1 inch
Length
-
ips
1 inch / s
Velocity
-
joule
1 J
Energy
-
J
1 joule
Energy
-
kNm
1 kN * m
Torque
-
kip
1 kip
Force
-
knots
1.852 km / hr
Velocity
kn
ksi
1000 * psi
Pressure
-
lightyear
lightspeed * year
Length
-
link
1 li
Length
-
liter
1 litre
Volume
l, L, lt
lbf
1 poundforce
Force
-
lbm
1 poundmass
Mass
lb, lbs
lightspeed
299792458 m / s
Velocity
c
lpm
1 l / minute
Volume flow rate
-
m
1 meter
Length
-
mi
1 mile
Length
-
mil
1 mil
Length
-
millennia
1000 years
Time
millennium
minim
1 minim
Liquid volume
-
month
1 month
Time
months
mph
1 mile / hr
Velocity
-
N
1 newton
Force
-
oz
1 ounce
Mass
-
Pa
1 pascal
Pressure
-
pint
1 pt
Liquid volume
-
psi
1 psi
Pressure
-
psf
1 lb/sqft
Pressure
-
qt
1 quart
Liquid volume
-
rad
1 radian
Angles
-
rph
2π * rad / hr
Angular velocity
-
rpm
2π * rad / minute
Angular velocity
RPM
rps
2π * rad / s
Angular velocity
RPS
rpd
2π * rad / day
Angular velocity
-
s
1 second
Time
secs, seconds
stone
1 stone
Mass
-
thm
100000 BTU
Energy
Therm
torr
1 torr
Pressure
-
turns
2π * rad
Angle
-
V
1 volt
Electricity and magnetism
-
W
1 watt
Power
-
week
1 week
Time
weeks
year
1 year
Time
years
Last updated