mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-20 11:11:24 +00:00
640 lines
11 KiB
Plaintext
640 lines
11 KiB
Plaintext
/ $FreeBSD$
|
|
|
|
/ primitive units
|
|
|
|
m !a!
|
|
kg !b!
|
|
sec !c!
|
|
coul !d!
|
|
candela !e!
|
|
dollar !f!
|
|
bit !h!
|
|
erlang !i!
|
|
K !j!
|
|
|
|
/ prefixes
|
|
|
|
yotta- 1e24
|
|
zetta- 1e21
|
|
exa- 1e18
|
|
peta- 1e15
|
|
tera- 1e12
|
|
giga- 1e9
|
|
mega- 1e6
|
|
myria- 1e4
|
|
kilo- 1e3
|
|
hecto- 1e2
|
|
deka- 1e1
|
|
deci- 1e-1
|
|
centi- 1e-2
|
|
milli- 1e-3
|
|
micro- 1e-6
|
|
nano- 1e-9
|
|
pico- 1e-12
|
|
femto- 1e-15
|
|
atto- 1e-18
|
|
zopto- 1e-21
|
|
yocto- 1e-24
|
|
|
|
semi- .5
|
|
demi- .5
|
|
|
|
Y- yotta
|
|
Z- zetta
|
|
E- exa
|
|
P- peta
|
|
T- tera
|
|
G- giga
|
|
M- mega
|
|
k- kilo
|
|
h- hecto
|
|
da- deka
|
|
d- deci
|
|
c- centi
|
|
m- milli
|
|
n- nano
|
|
p- pico
|
|
f- femto
|
|
a- atto
|
|
z- zopto
|
|
y- yocto
|
|
|
|
/ binary prefixes introduced in 1999
|
|
exbi- 1152921504606846976
|
|
pebi- 1125899906842624
|
|
tebi- 1099511627776
|
|
gibi- 1073741824
|
|
mebi- 1048576
|
|
kibi- 1024
|
|
|
|
Ei- exbi
|
|
Pi- pebi
|
|
Ti- tebi
|
|
Gi- gibi
|
|
Mi- mebi
|
|
Ki- kibi
|
|
|
|
/ constants
|
|
|
|
fuzz 1
|
|
pi 3.14159265358979323846
|
|
c 2.99792458e+8 m/sec fuzz
|
|
g 9.80665 m/sec2
|
|
bigG 6.67390e-11 m3/kg/s2
|
|
au 1.49597871e+11 m fuzz
|
|
mole 6.022169e+23 fuzz
|
|
e 1.6021917e-19 coul fuzz
|
|
energy c2
|
|
force g
|
|
mercury 1.33322e+5 kg/m2-sec2
|
|
hg mercury
|
|
|
|
/ dimensionless
|
|
|
|
radian .5 / pi
|
|
degree 1|180 pi-radian
|
|
circle 2 pi-radian
|
|
turn 2 pi-radian
|
|
revolution turn
|
|
rev turn
|
|
grade .9 degree
|
|
arcdeg 1 degree
|
|
arcmin 1|60 arcdeg
|
|
ccs 1|36 erlang
|
|
arcsec 1|60 arcmin
|
|
|
|
steradian radian2
|
|
sphere 4 pi-steradian
|
|
sr steradian
|
|
|
|
/ Time
|
|
|
|
second sec
|
|
s sec
|
|
minute 60 sec
|
|
min minute
|
|
hour 60 min
|
|
hr hour
|
|
day 24 hr
|
|
da day
|
|
week 7 day
|
|
year 365.24219879 day fuzz
|
|
yr year
|
|
month 1|12 year
|
|
us microsec
|
|
|
|
/ Mass
|
|
|
|
gram millikg
|
|
gm gram
|
|
metricton kilokg
|
|
|
|
/ Avoirdupois
|
|
|
|
lb .45359237 kg
|
|
pound lb
|
|
lbf lb g
|
|
ounce 1|16 lb
|
|
oz ounce
|
|
dram 1|16 oz
|
|
dr dram
|
|
grain 1|7000 lb
|
|
gr grain
|
|
shortton 2000 lb
|
|
ton shortton
|
|
longton 2240 lb
|
|
|
|
/ Apothecary
|
|
|
|
scruple 20 grain
|
|
apdram 60 grain
|
|
apounce 480 grain
|
|
appound 5760 grain
|
|
troypound appound
|
|
|
|
/ Length
|
|
|
|
meter m
|
|
micron micrometer
|
|
angstrom decinanometer
|
|
|
|
inch 2.54 cm
|
|
in inch
|
|
foot 12 in
|
|
feet foot
|
|
ft foot
|
|
yard 3 ft
|
|
yd yard
|
|
rod 5.5 yd
|
|
rd rod
|
|
mile 5280 ft
|
|
mi mile
|
|
|
|
british 1200|3937 m/ft
|
|
nmile 1852 m
|
|
|
|
acre 4840 yd2
|
|
|
|
cc cm3
|
|
liter kilocc
|
|
ml milliliter
|
|
|
|
/ US Liquid
|
|
|
|
gallon 231 in3
|
|
imperial 1.20095
|
|
gal gallon
|
|
quart 1|4 gal
|
|
qt quart
|
|
pint 1|2 qt
|
|
pt pint
|
|
|
|
floz 1|16 pt
|
|
fldr 1|8 floz
|
|
shot 3|2 floz
|
|
|
|
/ US Dry
|
|
|
|
dry 268.8025 in3/gallon fuzz
|
|
peck 8 dry-quart
|
|
pk peck
|
|
bushel 4 peck
|
|
bu bushel
|
|
chaldron 36 bushel
|
|
|
|
/ British
|
|
|
|
brgallon 277.420 in3 fuzz
|
|
brquart 1|4 brgallon
|
|
brpint 1|2 brquart
|
|
brfloz 1|20 brpint
|
|
brpeck 554.84 in3 fuzz
|
|
brbushel 4 brpeck
|
|
brhundredweight 112 lb
|
|
|
|
/ Energy Work
|
|
|
|
newton kg-m/sec2
|
|
nt newton
|
|
N newton
|
|
joule nt-m
|
|
cal 4.1868 joule
|
|
|
|
/ Electrical
|
|
|
|
coulomb coul
|
|
C coul
|
|
ampere coul/sec
|
|
amp ampere
|
|
watt joule/sec
|
|
volt watt/amp
|
|
ohm volt/amp
|
|
mho /ohm
|
|
farad coul/volt
|
|
henry sec2/farad
|
|
weber volt-sec
|
|
|
|
/ Light
|
|
|
|
cd candela
|
|
lumen cd sr
|
|
lux cd sr/m2
|
|
|
|
/ Wall Street Journal, July 2, 1993
|
|
|
|
$ dollar
|
|
argentinapeso $
|
|
australiadollar .66 $
|
|
bahraindinar 2.6522 $
|
|
brazilcruzeiro .000019 $
|
|
britainpound 1.49 $
|
|
canadadollar .77 $
|
|
czechkoruna .034 $
|
|
chilepeso .0025 $
|
|
chinarenminbi .174856 $
|
|
colombiapeso .001495 $
|
|
denmarkkrone .15 $
|
|
ecuadorsucre .000539 $
|
|
greatbritainpound britainpound
|
|
greecedrachma .0043 $
|
|
hongkongdollar .13 $
|
|
hungaryforint .011 $
|
|
indiarupee .03211 $
|
|
indonesiarupiah .0004782 $
|
|
israelshekel .3642 $
|
|
japanyen .0093 $
|
|
jordandinar 1.4682 $
|
|
kuwaitdinar 3.3173 $
|
|
lebanonpound .000578 $
|
|
malaysiaringgit .338 $
|
|
maltalira 2.6042 $
|
|
mexicopeso .3205128 $
|
|
newzealanddollar .539 $
|
|
norwaykrone .139 $
|
|
pakistanrupee .037 $
|
|
perunewsol .5065 $
|
|
philippinespeso .03738 $
|
|
polandzloty .000059 $
|
|
saudiarabiariyal .26702 $
|
|
singaporedollar .6157 $
|
|
slovakkoruna .034 $
|
|
southafricarand .21 $
|
|
southkoreawon .001 $
|
|
swedenkrona .13 $
|
|
switzerlandfranc .66 $
|
|
taiwandollar .038285 $
|
|
thailandbaht .03962 $
|
|
turkeylira .0000929 $
|
|
unitedarabdirham .2723 $
|
|
uruguaynewpeso .246852 $
|
|
venezuelabolivar .011 $
|
|
|
|
/ EMU currencies have constant exchange rate against Euro since 1.1.1999
|
|
austriaschilling 1|13.7603 euro
|
|
belgiumfranc 1|40.3399 euro
|
|
finlandmarkka 1|5.94573 euro
|
|
francefranc 1|6.55957 euro
|
|
germanymark 1|1.95583 euro
|
|
irelandpunt 1|0.787564 euro
|
|
italylira 1|1936.27 euro
|
|
netherlandsguilder 1|2.20371 euro
|
|
portugalescudo 1|200.482 euro
|
|
spainpeseta 1|166.386 euro
|
|
|
|
/ rate of euro against dollar from 2002-07-09
|
|
euro 0.99 $
|
|
|
|
mark germanymark
|
|
bolivar venezuelabolivar
|
|
peseta spainpeseta
|
|
rand southafricarand
|
|
escudo portugalescudo
|
|
sol perusol
|
|
guilder netherlandsguilder
|
|
hollandguilder netherlandsguilder
|
|
peso mexicopeso
|
|
yen japanyen
|
|
lira italylira
|
|
rupee indiarupee
|
|
drachma greecedrachma
|
|
franc francefranc
|
|
markka finlandmarkka
|
|
sucre ecuadorsucre
|
|
poundsterling britainpound
|
|
cruzeiro brazilcruzeiro
|
|
|
|
/ computer
|
|
|
|
baud bit/sec
|
|
byte 8 bit
|
|
block 512 byte
|
|
kbyte 1024 byte
|
|
megabyte 1024 kbyte
|
|
gigabyte 1024 megabyte
|
|
terabyte 1024 gigabyte
|
|
petabyte 1024 terabyte
|
|
exabyte 1024 petabyte
|
|
zettabyte 1024 exabyte
|
|
yottabyte 1024 zettabyte
|
|
kilobyte kbyte
|
|
meg megabyte
|
|
|
|
|
|
/ Trivia
|
|
|
|
% 1|100
|
|
admiraltyknot 6080 ft/hr
|
|
apostilb cd/pi-m2
|
|
are 1e+2 m2
|
|
arpentcan 27.52 mi
|
|
arpentlin 191.835 ft
|
|
astronomicalunit au
|
|
atmosphere 1.01325e+5 nt/m2
|
|
atm atmosphere
|
|
atomicmassunit 1.66044e-27 kg fuzz
|
|
amu atomicmassunit
|
|
bag 94 lb
|
|
bakersdozen 13
|
|
bar 1e+5 nt/m2
|
|
barie 1e-1 nt/m2
|
|
barleycorn 1|3 in
|
|
barn 1e-28 m2
|
|
barrel 42 gal
|
|
barye 1e-1 nt/m2
|
|
bev 1e+9 e-volt
|
|
biot 10 amp
|
|
blondel cd/pi-m2
|
|
boardfoot 144 in3
|
|
bolt 40 yd
|
|
bottommeasure 1|40 in
|
|
britishthermalunit 1.05506e+3 joule fuzz
|
|
btu britishthermalunit
|
|
refrigeration 12000 btu/ton-hour
|
|
buck dollar
|
|
cable 720 ft
|
|
caliber 1e-2 in
|
|
calorie cal
|
|
carat 205 milligram
|
|
caratgold 1|24
|
|
cent centidollar
|
|
cental 100 lb
|
|
centesimalminute 1e-2 grade
|
|
centesimalsecond 1e-4 grade
|
|
century 100 year
|
|
cfs ft3/sec
|
|
chain 66 ft
|
|
circularinch 1|4 pi-in2
|
|
circularmil 1e-6|4 pi-in2
|
|
clusec 1e-8 mm-hg m3/s
|
|
coomb 4 bu
|
|
cord 128 ft3
|
|
cordfoot cord
|
|
crith 9.06e-2 gm
|
|
cubit 18 in
|
|
cup 1|2 pt
|
|
curie 3.7e+10 /sec
|
|
dalton amu
|
|
decade 10 yr
|
|
dipotre /m
|
|
displacementton 35 ft3
|
|
doppelzentner 100 kg
|
|
dozen 12
|
|
drop .03 cm3
|
|
dyne cm-gm/sec2
|
|
electronvolt e-volt
|
|
ell 45 in
|
|
engineerschain 100 ft
|
|
engineerslink 100|100 ft
|
|
equivalentfootcandle lumen/pi-ft2
|
|
equivalentlux lumen/pi-m2
|
|
equivalentphot cd/pi-cm2
|
|
erg cm2-gm/sec2
|
|
ev e-volt
|
|
faraday 9.652e+4 coul
|
|
fathom 6 ft
|
|
fermi 1e-15 m
|
|
fifth 4|5 qt
|
|
fin 5 dollar
|
|
finger 7|8 in
|
|
firkin 9 gal
|
|
footcandle lumen/ft2
|
|
footlambert cd/pi-ft2
|
|
fortnight 14 da
|
|
franklin 3.33564e-10 coul
|
|
frigorie kilocal
|
|
furlong 220 yd
|
|
galileo 1e-2 m/sec2
|
|
gamma 1e-9 weber/m2
|
|
gauss 1e-4 weber/m2
|
|
geodeticfoot british-ft
|
|
geographicalmile 1852 m
|
|
gilbert 7.95775e-1 amp
|
|
gill 1|4 pt
|
|
gross 144
|
|
gunterschain 22 yd
|
|
hand 4 in
|
|
hectare 1e+4 m2
|
|
hefnercandle .92 cd
|
|
hertz /sec
|
|
Hz hertz
|
|
hogshead 2 barrel
|
|
hd hogshead
|
|
homestead 1|4 mi2
|
|
horsepower 550 ft-lb-g/sec
|
|
hp horsepower
|
|
hyl gm force sec2/m
|
|
hz /sec
|
|
imaginarycubicfoot 1.4 ft3
|
|
jeroboam 4|5 gal
|
|
karat 1|24
|
|
key kg
|
|
khz 1e+3 /sec
|
|
kilderkin 18 gal
|
|
knot nmile/hr
|
|
lambert cd/pi-cm2
|
|
langley cal/cm2
|
|
last 80 bu
|
|
league 3 mi
|
|
lightyear c-yr
|
|
line 1|12 in
|
|
link 66|100 ft
|
|
longhundredweight 112 lb
|
|
longquarter 28 lb
|
|
lusec 1e-6 mm-hg m3/s
|
|
m_earth 5.97223e24 kg
|
|
m_moon 7.34e22 kg
|
|
m_sun 1.98843e30 kg
|
|
mach 331.46 m/sec
|
|
magnum 2 qt
|
|
marineleague 3 nmile
|
|
maxwell 1e-8 weber
|
|
metriccarat 200 milligram
|
|
mgd megagal/day
|
|
mh millihenry
|
|
mhz 1e+6 /sec
|
|
mil 1e-3 in
|
|
millennium 1000 year
|
|
minersinch 1.5 ft3/min
|
|
minim 1|60 fldr
|
|
mo month
|
|
mpg mile/gal
|
|
mph mile/hr
|
|
nail 1|16 yd
|
|
nauticalmile nmile
|
|
nit cd/m2
|
|
noggin 1|8 qt
|
|
nox 1e-3 lux
|
|
oersted 2.5e+2 pi-amp/m
|
|
oe oersted
|
|
pace 36 in
|
|
palm 3 in
|
|
parasang 3.5 mi
|
|
parsec au-radian/arcsec
|
|
pascal nt/m2
|
|
pc parsec
|
|
pennyweight 1|20 oz
|
|
pwt pennyweight
|
|
percent %
|
|
perch rd
|
|
pf picofarad
|
|
phot lumen/cm2
|
|
pica 1|6 in
|
|
pieze 1e+3 nt/m2
|
|
pipe 4 barrel
|
|
point 1|72 in
|
|
poise gm/cm-sec
|
|
pole rd
|
|
poundal ft-lb/sec2
|
|
pdl poundal
|
|
proof 1|200
|
|
psi lb-g/in2
|
|
quarter 9 in
|
|
quartersection 1|4 mi2
|
|
quintal 100 kg
|
|
quire 25
|
|
r_earth 6.378e8 cm
|
|
r_moon 1.738e7 cm
|
|
r_sun 6.9599e10 cm
|
|
rad 100 erg/gm
|
|
ream 500
|
|
registerton 100 ft3
|
|
rehoboam 156 floz
|
|
rhe 10 m2/nt-sec
|
|
rontgen 2.58e-4 curie/kg
|
|
rood 1.21e+3 yd
|
|
rope 20 ft
|
|
rutherford 1e+6 /sec
|
|
rydberg 1.36054e+1 ev
|
|
sabin 1 ft2
|
|
sack 3 bu
|
|
seam 8 bu
|
|
section mi2
|
|
shippington 40 ft3
|
|
shorthundredweight 100 lb
|
|
shortquarter 25 lb
|
|
siemens /ohm
|
|
sigma microsec
|
|
skein 120 yd
|
|
skot 1e-3 apostilb
|
|
slug lb-g-sec2/ft
|
|
span 9 in
|
|
spat 4 pi sr
|
|
spindle 14400 yd
|
|
square 100 ft2
|
|
stere m3
|
|
sthene 1e+3 nt
|
|
stilb cd/cm2
|
|
stoke 1e-4 m2/sec
|
|
stone 14 lb
|
|
strike 2 bu
|
|
surveyfoot british-ft
|
|
surveyyard 3 surveyfoot
|
|
surveyorschain 66 ft
|
|
surveyorslink 66|100 ft
|
|
tablespoon 4 fldr
|
|
tbl tablespoon
|
|
tbsp tablespoon
|
|
teaspoon 4|3 fldr
|
|
tesla weber/m2
|
|
therm 1e+5 btu
|
|
thermie 1e+6 cal
|
|
timberfoot ft3
|
|
tnt 4.6e+6 m2/sec2
|
|
tonne 1e+6 gm
|
|
torr mm hg
|
|
township 36 mi2
|
|
tsp teaspoon
|
|
tun 8 barrel
|
|
water gram g / cc
|
|
wey 40 bu
|
|
weymass 252 lb
|
|
Xunit 1.00202e-13 m
|
|
k 1.38047e-16 erg/degC
|
|
|
|
|
|
degC K
|
|
kelvin K
|
|
brewster 1e-12 m2/newton
|
|
degF 5|9 degC
|
|
degreesrankine degF
|
|
degrankine degreesrankine
|
|
degreerankine degF
|
|
degreaumur 10|8 degC
|
|
drachm 60 grain
|
|
poncelet 100 kg m g / sec
|
|
denier .05|450 gram / m
|
|
tex .001 gram / m
|
|
englishell 45 inch
|
|
scottishell 37.2 inch
|
|
flemishell 27 inch
|
|
planck 6.626e-34 joule-sec
|
|
hbar 1.055e-34 joule-sec
|
|
electronmass 9.1095e-31 kg
|
|
protonmass 1.6726e-27 kg
|
|
neutronmass 1.6606e-27 kg
|
|
V volt
|
|
eV e V
|
|
bohrradius hbar2-C2/8.988e9 N m2-e2-electronmass
|
|
becquerel 1|3.7e10 curie
|
|
fresnel 1e12 hertz
|
|
statcoul 1|2.99792458e9 coul
|
|
statamp 1|2.99792458e9 amp
|
|
statvolt 2.99792458e2 volt
|
|
statcoulomb statcoul
|
|
statampere statamp
|
|
debye 3.336e-30 coul-m
|
|
pulsatance 2 pi/sec
|
|
rpm rev/minute
|
|
rps rev/sec
|
|
kilohm kiloohm
|
|
megohm megaohm
|
|
siderealyear 365.256360417 day
|
|
siderealday 23.934469444 hour
|
|
siderealhour 1|24 sidereal day
|
|
lunarmonth 29.5305555 day
|
|
synodicmonth lunarmonth
|
|
siderealmonth 27.32152777 day
|
|
tropicalyear year
|
|
solaryear year
|
|
lunaryear 12 lunarmonth
|
|
cran 37.5 brgallon
|
|
kip 1000 lbf
|
|
frenchfoot 16|15 ft
|
|
frenchfeet frenchfoot
|
|
toise 6 frenchfeet
|
|
sievert 8.4 rontgen
|
|
candle 1.02 candela
|
|
militarypace 2.5 feet
|
|
metre meter
|
|
litre liter
|
|
gramme gram
|
|
iudiptheria 62.8 microgram
|
|
iupenicillin .6 microgram
|
|
iuinsulin 41.67 microgram
|
|
cottonyarncount 2520 ft/pound
|
|
linenyarncount 900 ft/pound
|
|
worstedyarncount 1680 ft/pound
|
|
metricyarncount meter/gram
|
|
jewlerspoint 2 milligram
|
|
|