Unit Conversion Table
This conversion table package allows conversion from one set of units to another. It is for manual use and does no calculations. But, this is a very easily printed table for reference. Most of the conversion factors are taken from the public domain information of the U.S. National Institute of Standards and Technology,
NIST .
Master Unit Converter Conversion Factors Table
Standard Prefixes
Prefix used in code
Prefix for written unit
Multiplier
da-
deka-
10
h-
hecto-
100
k-
kilo-
1000
M-
mega-
1e6
G-
giga-
1e9
T-
tera-
1e12
P-
peta-
1e15
E-
exa-
1e18
Z-
zeta-
1e21
Y-
yotta-
1e24
d-
deci-
1e-1
c-
centi-
1e-2
m-
milli-
1e-3
mu-
micro-
1e-6
n-
nano-
1e-9
p-
pico-
1e-12
f-
femto-
1e-15
a-
atto-
1e-18
z-
zepto-
1e-21
y-
yocto-
1e-24
Standard Units
Unit
Symbol
Definition
Comments
Time
second
sec
1 s
minute
min
60 s
hour
hr
60 min
hour
hour
1 hr
alternate symbol
hour
h
1 hr
alternate symbol
day
day
24 hr
shake
shake
10 ns
Hertz
Hz
1 s^-1
Length or Distance
international foot
ft
0.3048 m
inch
in
1.0/12.0 ft
international mile
mile
5280.0 ft
international mile
mi
1 mile
alternate symbol
milli-inch
mil
0.001 in
Parsec
pc
3.085678e16 m
League
league
3 mile
Astronomical Unit
ua
1.49598e11 m
Astronomical Unit
AU
1.49598e11 m
alternate symbol
yard
yd
3 ft
Angstrom
Ang
1e-10 m
Angstrom
\\AA
1 Ang
alternate symbol
furlong
furlong
220 yd
fathom
fathom
6 ft
Rod
rd
16.5 ft
U.S. survey foot
sft
(1200./3937.) m
U.S. survey mile
smi
5280 sft
also called statue mile
point
pt
1./72. in
Typeface Point
pica
pica
1./6. in
Typeface Pica
Temperature
Celsius
C
1 K -273.15
Rankine
R
5.0/9.0 K
Fahrenheit
F
1 R -459.67
Mass
gram
g
0.001 kg
This is case sensitive.
gram
gm
g
(alternate symbol)
pound mass
lbm
0.45359237 kg
(avoirdupois)
Troy pound
lbt
0.3732417 kg
(apothecary)
carat (metric)
carat
0.2 g
slug
slug
1 lb sec^2/ft
snail
snail
1 lb sec^2/in
Short Ton
ton
2000 lbm
Long Ton
ton_l
2240 lbm
Ounce
oz
28.34952 g
(avoirdupois)
Grain
gr
64.79891 mg
Pennyweight
dwt
1.55174 g
Force or Weight
Newton
N
1 kg m/s^2
Dyne
dyn
1e-5 N
pound force
lb
lbm G
pound force
lbf
lbm G
poundal
poundal
1 lbm ft/sec^2
kilopound
kip
1000 lbf
kilogram force
kgf
kg G
Energy
Joule
J
1 N m
British Therm. Unit
BTU
1055.056 J
(International Table)
British Therm. Unit
Btu
1 BTU
alternate symbol
British Therm. Unit
BTU_th
1054.350 J
(Thermochemical)
calorie
cal
4.1868 J
(International Table)
calorie
cal_th
4.184 J
(Thermochemical)
Calorie
Cal
4.1868 kJ
(nutritionists)
electron volt
eV
1.602177e-19 J
erg
erg
1e-7 J
Ton of TNT
TNT
4.184e9 J
Power
Watt
W
1 J/s
Horse Power
hp
550 ft lb/s
Pressure
bar
bar
1e5 N/m^2
Pascal
Pa
1 N/m^2
Pounds per sq. inch
psi
1 lb/in^2
Pounds per sq. ft.
psf
1 lb/ft^2
kilo psi
ksi
1000.0 psi
atmospheres
atm
1.01325e5 N/m^2
inches of Mercury
inHg
3.387 kPa
millimeters Mercury
mmHg
0.1333 kPa
Torr
torr
1.333224 Pa
Volume or Area
Liter
L
1/1000.0 m^3
gallon
gal
3.785412 L
Pint (U.S. liquid)
pint
1/8. gal
Quart (U.S. liquid)
qt
2 pint
Pint (U.S. dry)
dpint
0.5506105 L
Quart (U.S. dry)
dqt
2 dpint
Acre
acre
1/640.0 smi^2
Hectare
ha
10000 m^2
Barrel (petroleum)
barrel
158.9873 L
Fluid Ounce
oz_fl
29.57353 mL
Gill (U.S.)
gi
0.1182941 L
Peck (U.S.)
pk
8.809768 L
Tablespoon
tbl
1/32. pint
Teaspoon
tsp
1/3. tbl
Cup
cup
16. tbl
Electromagnetism
Coulomb
Co
1 A s
Electric Charge
Volt
V
1 W/A
Electric Potential
Ohm
ohm
1 V/A
Electric Resistance
Ohm
\\Omega
1 V/A
alternate symbol
Faraday
faraday
96485.31 Co
Electric Charge
Farad
farad
Co/V
Capacitance
Stokes
stokes
1e-4 m^2/s
Oersted
Oe
79.57747 A/m
Webber
Wb
V s
Magnetic flux
Tesla
Tesla
Wb/m^2
Magnetic flux density
Henry
H
Wb/A
Inductance
Siemens
S
A/V
Electrical Conductance
Light and Radiation
Lux
lux
cd/m^2
Iluminance
Lux
lx
cd/m^2
Lumen
lm
cd
Luminous Flux
Stilb
sb
10000 cd/m^2
Phot
ph
10000 lx
Becquerel
Bq
s^-1
activity
Gray
Gy
J/kg
Absorbed Dose, kerma
Sievert
Sv
J/kg
Dose equivalent
Other Quantities
pound mole
lbmole
1 mol lbm/g
quantity
poise
poise
1 g /sec cm
viscosity
Gravity's accel.
G
9.80665 m/sec^2
Gravity on Earth
Degree
deg
Pi/180
Can be used to convert from degrees to radians for trig functions.
Percent
%
0.01
Knot
knot
1852 m/hr
velocity
Miles per Hour
mph
1 mi/hr
velocity
Gallon/minute
gpm
1. gal/min
flow rate
Revolution/minute
rpm
360 deg/min
Updated: 7/1/11
