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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. Most of the conversion factors are taken from the public domain information of the U.S. National Institute of Standards and Technology,
NIST.
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 |
|
Version 1.3.1
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